french onion tart

french onion tart

Does anyone else ever totally geek out about a new kitchen tool/appliance? My new toaster oven came yesterday and I am PSYCHED. Seriously.

Anyway, sometimes, you just gotta roll with a food craving. This past weekend, nothing in the world (slight exaggeration) sounded tastier than caramelized onions, egg, and cheese baked into a tart crust. While this recipe takes time, it’s a cinch to throw together, and you probably have most of the ingredients lying around your kitchen anyway.

In other news, I did bar trivia last night for the first time ever with a group of friends. It was surprisingly fun, and I can totally see why it’s such a popular winter activity. Toasty warm bar, friends, beer, and food? Sign me up.

french onion tart

**Recipe notes: The recipe below is taken directly from Smitten Kitchen. I ended up using two red and two yellow onions, chicken stock instead of beef, and shaoxing rice wine instead of the cognac/brandy. Still freakin’ delicious. I actually think the red onions help the flavor to be a little bit more interesting, but use what you have. Finally, I found that my dough needed a bit more water than Deb’s recipe called for. If you notice that your dough is too dry to come together, add a bit more cold water, but only add it a little at a time. You don’t want the dough to be overly wet…then you won’t be able to roll it out.

French Onion Tart
recipe from Smitten Kitchen (my notes are above)

for the crust:
2 cups (250 grams) all-purpose flour
1/4 teaspoon table salt
1/2 cup (1 stick, 4 ounces, or 113 grams) chilled unsalted butter, in cubes
3 tablespoons cold water**

for the filling:
1 1/2 pounds onions (about 4 medium), halved and thinly sliced**
1 TB unsalted butter
1 TB olive oil
Scant 1/2 tsp table salt
Pinch of sugar
1 cup low-sodium beef, veal or mushroom stock/broth**
2 teaspoons cognac, brandy or vermouth (optional)**
Freshly ground black pepper
1/2 cup (about 2 ounces or 60 grams) grated Gruyere, Comte or Swiss cheese
1 large egg
1/2 cup heavy cream (half-and-half and milk work too, but cream tastes best)

**see notes above recipe.


  1. Make crust: Mix flour and salt together in a large bowl or the work bowl of a food processor. Add butter; either rub the butter bits into the flour with your fingertips, with a pastry blender or (in the food processor option) by pulsing the machine on in short bursts until the mixture resembles breadcrumbs.
  2. Sprinkle in cold water and mix it with a spoon, a few more cuts with a handheld pastry blender, or by pulsing the machine a couple more times. The mixture should form large clumps. Knead it gently into a ball; it will be on the firm side but should be easy to roll.
  3. Lightly butter a 9-inch round tart pan with a removable base. Don’t have one? Try a standard pie dish or even a 9-inch cake pan. The second two options will be hard/impossible to unmold later, but there’s no harm in serving the tart from its baking pan.
  4. Roll your dough out between two pieces of plastic wrap until it is about 11 inches in diameter. Peel the top plastic layer off and reverse the dough into the prepared tart pan, lifting the sides to drape (rather than pressing/stretching the dough) the dough into the corners. Press the dough the rest of the way in and up the sides. Trim edges, which you can leave ever-so-slightly extended above the edge of the tart pan, to give you some security against shrinkage. Chill for 15 minutes in your freezer.
  5. Par-bake the crust: Heat oven to 400F. Lightly butter a piece of foil and press it tightly into your firm-from-the-freezer tart shell. Fill tart shell with pie weights, dried beans or rice or pennies and blind bake for 12 to 14 minutes. Remove from oven, carefully remove foil and weights, and return to oven for another 5 to 7 minutes, until lightly golden at edges. Set aside until needed.
  6. Make filling: Melt the butter and olive oil together in a large skillet over medium heat. Add the onions to the pan, toss them gently with the butter and oil, reduce the heat to medium-low, and cover the pan.
  7. Cook the onions for 15 minutes, then remove the lid, stir in the salt and sugar and saute without the lid for about 10 to 15 minutes, until the onions are fully caramelized and have taken on a deep golden color.
  8. Pour in cognac, if using, and the stock, then turn the heat all the way up and scrape up any brown bits stuck to the pan. Simmer the mixture until the broth nearly completely disappears (wetter onions will make for a wetter quiche), about 5 to 10 minutes.
  9. Adjust the salt, if needed, and season with freshly ground black pepper.
  10. Let cool until warm. You can hasten this process by spreading the onions out on a plate in the fridge, or even faster, in the freezer.
  11. In a medium bowl, beat the egg and cream together. Gently stir the lukewarm onions into the custard.
  12. Heat oven to 400F. Fill prepared tart shell with onion-egg mixture. Ideally, this will bring your filling level to 1/4-inch from the top, however, variances in shells, pans, pan sizes and even onion volume might lead you to have a lower fill line. You can beat another egg with cream together and pour it in until it reaches that 1/4-inch-from-top line if you wish.
  13. Sprinkle cheese over custard and bake 25 to 30 minutes, or until a sharp knife inserted into the filling and turned slightly releases no wet egg mixture. Serve hot or warm, with a big green salad.

onion tart


Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s