Winter Warmth: Celery Root and Parnsip Soup

Winter Warmth: Celery Root and Parnsip Soup

Celery root and parsnip team up in this soup with light yet luxurious results. The sweet earthiness of the parsnip grounds the subtle notes of the celeriac, adding depth without overpowering. The two root vegetables mingle and simmer in a simple concoction of chicken stock and thyme until they are soft enough to purée into a thick soup. You might find yourself tempted to call this soup creamy, but no cream is present – that is unless you feel like adding a splash for extra richness. (It’s the holiday season, after all!)

Celery Root and Parsnip Soup

Substitute a little cream for some of the chicken stock after puréeing for an even richer and more luxurious soup. Serves 4.

1 tablepoon olive oil
1 small celery root, about 1 pound, peeled, cut in 1/2 inch pieces
1 large parsnip, about 1/2 pound, peeled, cut in 1/2 inch pieces
1 garlic clove
3-4 cups chicken stock
1/2 teaspoon dried thyme
1 teaspoon freshly ground black pepper
1/2 teaspoon salt

Heat olive oil in a pot or deep skillet. Add celery root, parsnip and garlic clove. Sauté until fragrant and vegetables begin to soften without coloring, about 3 minutes. Add 3 cups chicken stock and thyme. Bring to a boil, then reduce heat to a simmer. Cover and cook until vegetables are very soft, about 30 minutes. Carefully transfer in batches to bowl of a food processor, or use an immersion blender, and purée soup until smooth. Return to pot. Add additional 1 cup chicken stock  or enough for desired consistency. (Optional: Replace 1/2 cup stock with heavy cream.) Stir in pepper and salt; heat through. Taste for seasoning. Serve hot.

The Cure and a Recipe for Spinach Salad with Warm Balsamic Vinaigrette

The Cure and a Recipe for Spinach Salad with Warm Balsamic Vinaigrette

Charucutepalooza #11: The Cure – Air Dried Pork Tenderloin

I knew the mini-bar had a purpose. There is a funky mini-bar downstairs in our home which serves no use except to take up space – that is until now. This month’s Charcutepalooza challenge is curing (which is another way of saying hanging and drying) a whole piece of meat. The trick is to hang the meat in an environment which maintains a steady temperature and humidity level. The professionals might use a curing chamber which will do all of this in a sleek, shiny, high tech manner. For us newbies we must rely on a basement, garage, wine cellar, and lots of faith tempered with caution. Of course, it would be helpful if we actually had a basement or wine cellar, or that the mild California climate would guarantee a steady cool temperature.

Enter the mini-bar fridge, which sits quietly forgotten, occasionally stocked with an overflow of party beverages, but usually empty. After reading a post by Michael Ruhlman, I realized that this appliance associated with my college dorm room could, in fact, house my meat. All I had to do was clean it and turn it to its warmest setting, and suddenly our clunky relic from the previous owner’s jacuzzi parties morphed into a handy dandy meat curing chamber.

Since I had no idea how any of this would turn out, and mindful that I might possibly produce results that could sicken my family, I decided to keep it very simple and cured two pork tenderloins. The process took all of 3 weeks, with no hands on attention except to remember to check it. My husband gamely offered to taste the finished results, and loved them, affirming – once again – that Charcutepalooza is making him one happy meat eating camper.

The meat is delicious to eat as is, but I also love to add dried ham to pizzas, pasta, eggs and salads. It’s salty, chewy texture gives just the right oomph to this winter spinach salad.

Wilted Spinach Salad with Warm Balsamic Vinaigrette, Toasted Pinenuts and Cured Pork

The warm balsamic dressing will lightly wilt the spinach greens as they are tossed. If you don’t have any air dried pork, oven dried prosciutto is an excellent and easily accessible alternative. Serves 4-6.

3/4 pound baby spinach, washed and dried
1 large shallot, thinly sliced
1 garlic clove, slightly smashed
1/3 cup balsamic vinegar
1 teaspoon sugar
2 teaspoons fresh lemon juice
1/2 teaspoon salt
1/2 teaspoon freshly ground black pepper
1/2 cup extra virgin olive oil
1/2 cup cured pork or oven dried prosciutto (see below), broken in pieces
1/4 cup pine nuts, lightly toasted

Place spinach and shallot in a large bowl. Combine garlic, vinegar and sugar in a small saucepan over medium heat. Bring to a boil then reduce to a simmer. Cook until vinegar is reduced by half. Remove from heat and stir in lemon juice, salt and pepper. Slowly add oil in a steady stream, whisking constantly to emulsify. Remove and discard garlic clove. Pour half of the warm dressing over the spinach. Toss to combine. Add more dressing to taste. Divide salad among individual plates. Scatter pork and pine nuts over the salad. Serve immediately.

To oven dry prosciutto:
Preheat oven to 350 F. Place 8 slices of prosciutto on a baking tray in one layer. Bake in oven 15 minutes. Turn off oven; do not remove prosciutto. Let it sit in oven 15 more minutes. Remove and break into shards.

What is Charcutepalooza?
An inspirational idea hatched by Cathy Barrow and Kim Foster and partnering with Food52 and Punk Domestics. It celebrates a Year in Meat, where participating foodies and bloggers will cure, smoke and salt their way through Michael Ruhlman’s bestselling cookbook Charcuterie.

Pork (or Boar) Stew with Prunes and Armagnac

I prepared this stew with boar meat, because boar reminds me of autumn in Europe when it’s the season of la chasse – or hunting season.  Like most game, boar is lean and has a slightly gamey flavor. It benefits from slow cooking and pairs well with powerful aromatics such as juniper, winter fruit and spirits, such as Calvados and Armagnac. If you cannot find boar meat, pork is a good substitute.

Pork (or Boar) Stew with Prunes and Armagnac

Serves 6

20 prunes, pitted
3/4 cup Armagnac brandy
3 pounds pork or boar shoulder, excess fat trimmed, meat cut into 2-inch chunks
Salt
Freshly ground black pepper
2 tablespoons olive oil
4 ounces bacon, coarsely chopped
2 large carrots, chopped
1 large yellow onion, chopped
3 garlic cloves, chopped
1 bottle full-bodied red wine
2 bay leaves
1 bouquet garni: 4 juniper berries, 3 rosemary sprigs, 2 thyme sprigs, and a handful of parsley leaves wrapped in cheesecloth and tied with a kitchen string

1. Combine the prunes and Armagnac in a bowl and let stand at least 1 hour.
2. Preheat the oven to 325°F.
3. Season the pork on all sides with salt and pepper. Heat the olive oil over medium-high heat in a Dutch oven or oven-proof pot with a lid. Add the pork in batches, without overcrowding, and brown on all sides. Transfer to a bowl and repeat with the remaining pork.
4. Pour off all but 1 tablespoon pork fat from the pan. Add the bacon and sauté until its fat renders. Add the carrots and onion and sauté until the onions soften and the carrots are crisp tender, 4 to 5 minutes. Add the garlic and sauté until fragrant, about 1 minute. Return the pork and any accumulated juices to the pan. Add the prunes and Armagnac, the wine, bay leaves, bouquet garni, 1 teaspoon salt, and 1 teaspoon black pepper. Bring to a boil, then reduce the heat to a simmer, cover the pan, and transfer to the oven. Cook until the meat is very tender, 2 1/2 to 3 hours.
5. Remove the stew from the oven, discard the bay leaves and bouquet garni, and taste for seasoning. Serve warm with mashed potatoes or polenta.
(The stew may be prepared up to two days in advance. Warm over low heat or in a 300 F. oven before serving.) 

Holiday Pumpkin Pecan Roulade

Pumpkin Pecan Roulade with Orange Mascarpone Cream

The holidays are upon us, and it’s time to get dressed up. The silver needs polishing, the shoes need shining and the kids need scrubbing. Even our food gets dressed up, with stuffings and dressings, garnishes and twists. Nothing escapes scrutiny, including dessert where dustings and dollops are par for the course. And, in the spirit of fancifying, what is known as the ordinary cake roll becomes an elegant roulade at the Thanksgiving table.

What is the difference between a cake roll and roulade? you may ask. Well, nothing. Both terms describe a light cake which is rolled in a spiral with a creamy filling. Yet the blandly descriptive cake roll is what I might consider an afternoon dalliance. For my Thanksgiving dinner, I am inviting the roulade, a French term which elegantly and aptly sums up the nature of the dessert as the word itself rolls off the tongue. I want that dessert at our dressed up holiday table.

Language aside, there are other reasons to include a roulade on your menu. It’s elegant yet uncomplicated, remarkably easy to prepare with stunning results. It’s a no-fail recipe, which is a welcome relief during the holidays and frees up more time to dress ourselves up for the guests.

Pumpkin Pecan Roulade with Orange Mascarpone Cream
Inspired by a recipe from Ina Garten. Serves 8 to 10.

For the cake:
3/4 cup all-purpose flour
1 teaspoon ground cinnamon
1 teaspoon baking soda
1/2 teaspoon salt
1/4 teaspoon ground nutmeg
3 large eggs
1 cup granulated sugar
2/3 cup pumpkin or butternut squash puree
1/2 teaspoon vanilla extract
1/2 cup finely chopped pecans
1/4 cup confectioners’ sugar, plus extra for dusting

For the filling:
8 ounces mascarpone cheese
3/4 cup sifted confectioners’ sugar
2 tablespoons heavy cream
1/4 teaspoon vanilla extract
1 teaspoon finely grated orange zest

Prepare cake:
Preheat oven to 375 F. (190 C.) Butter a 12 by 9 by 1-inch sheet pan. Line with parchment paper. Butter paper and dust with flour.
Sift flour, cinnamon, baking soda, salt and nutmeg together in a medium bowl and set aside. Whisk eggs and sugar in a bowl of an electric mixer until light and thick, 2 minutes. Add pumpkin and vanilla; mix until smooth. Stir in dry ingredients until combined without over-mixing. Pour into prepared pan and spread evenly with a spatula. Sprinkle pecans over batter. Bake in oven until toothpick inserted in the center comes out clean, 12-14 minutes. Remove and cool on wire rack 5 minutes. While the cake is cooling, lay a clean kitchen towel on the work surface. Sprinkle with 1/4 cup sifted confectioners sugar. Invert cake onto the sugared towel. Carefully peel away the parchment paper and discard. Starting at the long end, carefully roll up the cake, jelly-roll style, in the towel. Cool completely on the wire rack.

Prepare filling:
While the cake is cooling, combine mascarpone, confectioners’ sugar, cream and vanilla in bowl of electric mixer. Beat until light and fluffy. Stir in orange zest.

Assemble roulade:
Gently unroll cake on work surface. Spread filling evenly over cake with a spatula. Carefully roll the cake back up in the same direction, using the towel. Arrange seam-side down on a platter. Dust with confectioners’ sugar. Cut in 3/4 inch slices to serve.

Porcini and Rosemary Crusted Beef Tenderloin with Porcini Port Sauce

Porcini and Rosemary Crusted Beef Tenderloin with Porcini Port Sauce

beef tenderloin tf

This recipe is worth celebrating. Porcini and Rosemary Crusted Beef Tenderloin has been selected as a winner  in this week’s Food52 contest for Your Best Holiday Roast. And that’s not the only reason it’s worthy of a party. Dried porcini mushrooms blitzed with fresh rosemary sprigs and black peppercorns create an umami-rich rub for the beef, forming a crust that melts into the meat while roasting. It’s stand alone delicious, yet when napped with a luxurious port wine reduction infused with more porcini and rosemary, this dish becomes an elegant dinner worthy of any holiday celebration. So go on, name a holiday – or just call it the weekend. This is a treat that your family and friends will be sure to enjoy. And that’s worth celebrating, too.

Porcini and Rosemary Crusted Beef Tenderloin with Porcini Port Sauce

Salting the  meat in advance ensures juicy results and a crispy crust. A combination of port and red wine is used in this recipe. Red wine may be substituted with additional port. Serves 6 to 8.

For the beef tenderloin:
1 center cut beef tenderloin, about 3 pounds
Salt
1 ounce dried porcini mushrooms
2 tablespoons fresh rosemary leaves, finely chopped
1 teaspoon black peppercorns
Olive oil

For the Porcini Port Wine Sauce:
1/2 ounce dried porcini mushrooms, reconstituted in 3/4 cup hot water
3 tablespoons unsalted butter, room temperature
1 medium shallot, finely chopped
1 cup port wine
1 cup heavy-bodied red wine
2 rosemary sprigs
1/2 teaspoon salt, or to taste

1. Season the tenderloin all over with salt. Refrigerate 4 hours or up to 24 hours. Thirty minutes before roasting remove beef from the refrigerator.
2. Preheat the oven to 400°F. Combine the mushrooms, rosemary, and peppercorns in a spice grinder. Grind to a coarse powder. Rub the beef with olive oil, then coat all over with the rosemary porcini rub.
3. Heat 1 tablespoon olive oil in a wide skillet over medium-high heat until shimmering. Add the beef and brown on all sides, about 8 minutes, turning as necessary. Transfer the beef to a roasting pan, and set the skillet aside without rinsing for the sauce.
4. Roast beef in the oven until a meat thermometer inserted in the thickest part reads 125*F, about 30 minutes for medium-rare. Remove from the oven and transfer to a cutting board. Tent with foil and let stand for 15 minutes.
5. While the beef is roasting, prepare the sauce. Strain the porcini water through an un-bleached paper towel into a small bowl. Reserve the strained liquid. Coarsely chop the porcini.
6. Add 1 tablespoon butter, the shallots, and porcini to the reserved skillet. Sauté over medium heat until the shallots are translucent, about 2 minutes. Add the port, scraping up any brown bits in the pan. Add the red wine, mushroom stock, and rosemary. Bring to a boil and cook uncovered until the sauce is reduced by about half to approximately 1 1/2 cups. Add the salt and taste for seasoning. Strain through a fine-meshed seive into a small saucepan, pressing firmly on the solids; discard solids. Heat the sauce over medium heat. Whisk in 2 tablespoons butter, 1 tablespoon at a time. Keep warm until serving.
7. To serve, carve the meat in slices. Serve on warm plates with the porcini port sauce.

Sweet and Red Potato Mash

Sweet and Red Potato Mash

~ Sweet Potatoes, Red Bliss Potatoes and Celery Root Mash ~

It’s the time of year for soft and fluffy things. This applies to our food as well as our clothes.  As we wrap ourselves in wool and light the fire, we contemplate sating meals to comfort and fill our bellies. This simple side will do just that. Sweet and red potatoes are smashed together with celery root in a rustic rendition of fluffy mashed potatoes. Faintly sweet with potato and redolent of roasted garlic, this savory side is mellow and rich, promising to warm us as much on the inside as our fleece is protecting us on the outside.

Sweet and Red Potato Mash

Whole milk Greek style yogurt adds body and creaminess without excess fat to the potatoes. If you prefer extra richness, substitute sour cream for the yogurt. Serves 4-6.

2 pounds red potatoes with skin, cut in 1 inch pieces
1 pound sweet potato, peeled, cut in 1 inch pieces
1/2 pound celery root (celeriac), peeled, cut in 1/2 inch pieces
4 garlic cloves, divided
Salt
3 tablespoons unsalted butter, room temperature
1 cup whole milk Greek yogurt or sour cream
1/3 cup finely grated Parmigiano cheese
Freshly ground black pepper
Sage leaves for garnish

Combine potatoes and celery root in a large pot. Peel and smash 3 garlic cloves. Add to the pot. Cover with cold water. Bring to a boil. Reduce heat, cover and simmer until potatoes are very soft. Drain. Return to pot and cool slightly. Mince the remaining garlic and add to the potatoes. Add butter and yogurt. Mash with a potato masher to desired consistency. Stir in cheese. Add salt and pepper to taste. Serve warm, garnished with chopped sage leaves.

Pork Rillettes with Calvados and a recipe for Apple Prune Chutney

Pork Rillettes with Calvados and a recipe for Apple Prune Chutney

 Charcutepalooza Challenge #10: Stretching
Pork Rillettes with Calvados 

These little pots of meaty goodness promise to make right in the world. Rillettes are potted jars and terrines of meat confit, slow cooked in fat, shredded and packed in more fat. Rustic, unctuous and oh-so-rich, a little dab goes a long way. Which is why the process of making rillettes is called “stretching,” which is this month’s Charcutepalooza challenge.

Stretching is an economical and sparing way of making meat last – using all of the last bits and preserving them for later use. It’s a method steeped in conservation and frugality, yet its results are rich and luxurious. It’s the paradox of French country cooking, and it’s why I love it.

Duck, goose and pork are traditional proteins for rillettes. I chose pork and adapted a recipe from WrightFood where the pork is spiced and marinated overnight in Calvados, then slowly cooked in duck fat. Need I say more?

~
I like to accompany rillettes with fruit chutney. The sweet piquancy of chutney adds a fresh balance to the rich meat. Chutneys are flexible and forgiving. Use a mix of fresh and dried fruit, combined with an acid, such as vinegar or citrus. Sweet and savory with a kick, chutneys are perfect accompaniments to meat and poultry.

Apple Prune Chutney
Makes about 2 cups

1 tablespoon olive oil
2 large Granny Smith apples, peeled, cored, cut in 1/4 inch dice
1 large shallot, chopped, about 1/4 cup
1/2 cup coarsely chopped pitted prunes
1/3 cup currants or raisins
1/2 cup apple cider vinegar
1/3 cup Armagnac
2 tablespoons brown sugar
1 teaspoon ground coriander
1/2 teaspoon finely ground juniper berries
1/2 teaspoon salt
1/4 teaspoon freshly ground black pepper

Heat oil in a saucepan over medium heat. Add apples and shallot. Sauté until beginning to soften without browning, 2 minutes. Add remaining ingredients. Bring to a boil. Reduce heat to low and simmer uncovered until liquid has nearly evaporated, about 15 minutes. Remove from heat and cool to room temperature. Cover and refrigerate until use. May be made up to 2 days in advance. (Flavors will develop with time.)

What is Charcutepalooza?
An inspirational idea hatched by Cathy Barrow and Kim Foster and partnering with Food52 and Punk Domestics. It celebrates a Year in Meat, where participating foodies and bloggers will cure, smoke and salt their way through Michael Ruhlman’s bestselling cookbook Charcuterie.

Brussels Sprout Gratin


~ Brussels Sprout Gratin ~

If you have more than one child you may understand this tale: I have two children. One is an adventurous eater, and one is not. One loves fish, and the other can’t stand it (although I don’t really remember her tasting much of it.) One loves butter, while the other would prefer not to be seated at the same table with it. My highly unscientific theory is that this is nature’s way of ensuring that it’s offspring do not starve. If siblings have opposite tastes, then there is enough sustenance to feed the litter. After all, how would our species advance? At least this is how I console myself as a parent and a cook.

Which brings me to brussels sprouts. OK, I understand that you don’t have to be a child genetically predisposed to preserving the human race to dislike brussels sprouts. These little crucifers are enough to rile many a mature adult. But in our home, they are enjoyed – at least by most of us. My son likes them, and, therefore, my daughter does not. So, in a moment of inspiration and indefatigable hope I purchased a bag of firm pretty brussels sprouts at the market today with a plan. Instead of stir-frying or steaming them, I would gratinée them. While my daughter dislikes brussels sprouts, she loves gratins. Anything cheesy, creamy and crispy is right up her alley. Why not? I would give it a try. And you know what? She liked it. The problem is that my son, who dislikes rich and creamy food, did not.

Brussels Sprout Gratin
Serves 4

1 1/2 pounds brussels sprouts
2 tablespoons unsalted butter
1 small garlic clove, minced
2 tablespoons all-purpose flour
1 1/2 cups whole milk
1/3 cup finely grated Gruyère cheese
1 teaspoon salt
1/2 teaspoon freshly ground black pepper
1/4 teaspoon ground nutmeg
1/4 cup panko breadcrumbs
1/4 cup finely grated Parmigiano-Reggiano cheese

Preheat the oven to 350 F. (180 C.) Wash brussels sprouts. Trim outer leaves and bottoms, then cut in half. Steam brussels sprouts until crisp tender, about 3 minutes. Transfer to a large bowl.
Melt the butter over medium heat in a saucepan. Add the garlic and saute until fragrant, about 30 seconds. Add the flour and stir with a wooden spoon until well combined and light golden in color. Add the milk in a steady stream, whisking to incorporate, and bring to a boil. Reduce heat and simmer, stirring, until thickened. Stir in the Gruyere cheese, salt, pepper and nutmeg until smooth. Pour over the brussel sprouts and stir to thoroughly coat. Transfer to a gratin dish. Combine panko and Parmigiano in another small bowl. Sprinkle evenly over the brussels sprouts. Bake in oven until golden brown and heated through.

Ode to Fall: Pappardelle with Pork Ragù

~ Pork and Tomato Ragù with Pappardelle ~

I am going to ignore that it is 90 degrees outside. It’s fall after all. For those of you who know me, it’s that time of year when I have a little rant about missing New England weather. September is the time when the air puts on a chill just like a wooly cloak, the sun lowers seductively in the horizon, winking and casting its golden light while the aroma of turning leaves fills the air. I know I shouldn’t complain while I don my sunglasses and smear on more sunscreen, but I do. As I walk about the house in shorts and flip flops, I like to pretend that I am still in northern Europe or Boston, switching out my tank tops for fluffy fleece and packing tissues in my pocket to stop a runny nose. I might need a fan right now, but I can also indulge in warming fall comfort food.

Pappardelle with Pork Ragù

If you can stand it, refrigerate the ragù overnight before serving to allow the flavors to develop. This recipe will make enough ragù to serve a family of four with enough leftover to freeze for a second meal.

2 pounds pork butt, excess fat trimmed, cut in 2 inch chunks
Salt
Freshly ground black pepper
2 tablespoons olive oil
1 large yellow onion, chopped
2 carrots, finely diced
6 cloves garlic
1 teaspoon red pepper flakes
1 cup dry white wine
2 (28 ounce) cans Italian plum tomatoes with juice
2 bay leaves
2 teaspoons dried oregano
1 teaspoon dried thyme
1/2 teaspoon ground cinnamon

1 pound pappardelle pasta, cooked until al dente
Grated Pecorino Romano cheese

Salt and pepper the pork. Heat olive oil in a large pot or dutch oven over medium-high heat until it’s shimmering. Add pork in one layer in batches, without overcrowding. Brown on all sides; transfer to a plate. Repeat with remaining pork. Pour off all but 2 tablespoons fat. Add onion, carrots, garlic and red pepper flakes. Sauté until the vegetables begin to soften, about 3 minutes. Carefully add wine (it may spatter.) Cook, stirring up the brown bits and to burn off the alcohol, about 1 minute. Add tomatoes, bay leaves, oregano, thyme, cinnamon, 1 teaspoon salt and pepper. Return pork to the pot and submerge in the sauce. Simmer, covered, over low heat until pork is very tender, about 2 hours. Remove lid and continue to simmer, skimming fat occasionally with a spoon, until sauce is thickened, 45 minutes. Add salt and pepper to taste. Serve over cooked pappardelle with grated Pecorino Romano cheese.

Golden Onion Tart with Gruyère and Thyme

Golden Onion Tart with Gruyère and Thyme

This tart is a vehicle for caramelized onions. It’s also inspired by an appetizer I ate years ago in a Swiss auberge overlooking the Lake of Geneva. It’s been so long, I can’t remember the name of the restaurant, but I do remember the onion tart. It was simple and rustic, just like the half-timbered dining room with its roaring open fire where we tasted it. Sweet, rich and minimal, this tart was perfection in its simplicity. Today I make a version of this memory while we enjoy another view from our California home. I like to serve it in small slivers with glass of wine before dinner.

Golden Onion Tart with Gruyère and Thyme
Serves 8 to 12

For the dough – adapted from a recipe by Alice Waters:
1 cup all-purpose flour
1/2 teaspoon salt
6 tablespoons unsalted butter, chilled, cut in 1/4 inch cubes
3 tablespoons ice water

Stir flour and salt together with a fork. Toss in butter. Work the butter into the flour with a fork or your fingertips until it resembles coarse meal, with some pieces of the butter apparent. Sprinkle in the water while stirring with a fork until the dough comes together, adding another tablespoon of water if necessary. Form into a ball and flatten. Wrap in plastic wrap and refrigerate 1 hour

For the filling:
2 tablespoons olive oil
2 pounds yellow onion, peeled and thinly sliced
1 teaspoon salt
2 tablespoons port wine
1 teaspoon freshly ground black pepper
2 ounces finely grated Gruyère cheese
1 teaspoon fresh thyme, plus extra for garnish
1 egg, slightly beaten

Heat olive oil over medium heat in a deep skillet or pot. Add onions and salt. Cook onions, stirring occasionally, until they are golden brown, soft and squidgy, about 30 minutes. Add port wine and cook, stirring, 2 minutes. Remove onions from heat and stir in the pepper. Cool slightly.
While the onions are cooling, roll out the dough to fit in the bottom and up the side of a 10 inch round tart tin. Sprinkle half of the cheese over the bottom of the tart. Spoon onions into the shell and spread evenly. Sprinkle 1 teaspoon thyme over the onions. Brush the exposed crust rim with the egg wash. Sprinkle the tart and crust with the remaining cheese.
Bake in a preheated 375 F. oven until the crust is firm and golden and the onions have turned a rich golden brown, without blackening, about 30 minutes. Remove and cool slightly. Serve slightly warm or at room temperature garnished with thyme sprigs.