CARAMELIZED ONION, MUSHROOM & GRUYERE TARTLETS

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CARAMELIZED ONION, MUSHROOM & GRUYERE TARTLETS image

Categories     Mushroom     Appetizer     Bake     Sauté     Cocktail Party

Yield 16 3-inch Tartlets

Number Of Ingredients 12

1 tablespoon olive oil
1 large yellow onion, thinly sliced
1 tablespoon unsalted butter
16 ounces white button mushrooms, thinly sliced
1 clove garlic, chopped
½ teaspoon dried thyme
Salt and pepper, to taste
¼ cup white wine (can substitute chicken or vegetable broth)
2 sheets puff pastry (thawed according to directions on package)
1 cup shredded Gruyere cheese (can substitute any variety of Swiss cheese)
1 egg + 1 tablespoon water, beaten together (for the egg wash)
Handful of parsley, chopped

Steps:

  • DIRECTIONS: 1. Preheat oven to 400 degrees F and line two baking sheets with parchment paper. 2. Heat the olive oil in a wide, heavy-bottomed pan over medium-low heat and add the onions. Cook, stirring occasionally, until they begin to caramelize, about 20 minutes. 3. Add the butter to the pan. Once melted, add the mushrooms and saute, stirring occasionally, until they are completely soft and all of the liquid evaporates, about 20 minutes. 4. Add the garlic and the thyme and saute until fragrant, about 1 minute. Season with salt and pepper to taste. 5. Add the wine, scraping the bottom of the pan to pull up all of the browned bits, and cook until all of the liquid has evaporated. Remove from heat. 6. Unfold the thawed sheets of puff pastry and cut out circles from the dough, placing them evenly spaced on the baking sheets. Using a very sharp knife, make four small scores around the perimeter of the dough, about ¼ to ½-inch from the edge. 7. Top the rounds of puff pastry with a small spoonful of the onion and mushroom mixture, trying to keep the filling within the score marks. Top with the shredded Gruyere cheese. Brush the edges of the dough rounds with the egg wash. 8. Bake until the pastry is golden brown, about 15 to 25 minutes. Garnish with fresh chopped parsley. (Recipe adapted from Closet Cooking)

Ikenna Ikerionwu
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These tartlets are delicious! I will definitely be making them again.


Johnny Kambu
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These tartlets are the perfect combination of sweet and savory. I love the way the caramelized onions and mushrooms pair with the Gruyère cheese.


LIRIDON ELSHANI
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I've never made tartlets before, but this recipe made it so easy. I'm definitely going to try making them again.


Hani Muteee
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I love that this recipe uses puff pastry. It makes the tartlets so easy to make.


Kara Andrews
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These tartlets were perfect for my holiday party. They were easy to make ahead of time and they were a big hit with my guests.


Kristen Brandt
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I'm not a fan of Gruyère cheese, so I used cheddar cheese instead. The tartlets still turned out great!


ghiyasddin qazi
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These tartlets were a lot of work to make, but they were worth it! They were so delicious.


Md Khalid
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I found the instructions for this recipe to be a bit confusing. I'm not sure if I did something wrong, but my tartlets didn't turn out as well as I hoped.


Mehak Khan
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These tartlets were a bit too rich for my taste, but they were still good.


Michael Fisler
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I love the combination of flavors in these tartlets. The caramelized onions are sweet and savory, the mushrooms are earthy, and the Gruyère cheese is nutty and gooey.


MD:UZZOL AHMED
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These tartlets are delicious! The caramelized onions and mushrooms are a perfect combination.


GOMIDA SAKUNTHA
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I've made these tartlets several times and they always come out great. They're a perfect appetizer or light meal.


Hamza Naeem
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I made these tartlets for a potluck and they were a big hit! Everyone loved them.


Xolie Dlamini
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These tartlets were easy to make and turned out so well! The flavors were perfect and the crust was nice and flaky.


Asif Akbar bhutta
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I'm not a huge fan of mushrooms, but I loved these tartlets! The caramelized onions and Gruyère cheese were so good that I didn't even notice the mushrooms.


Sweetly_dolly
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These tartlets were a hit at my last party! The caramelized onions and mushrooms were so flavorful, and the Gruyère cheese melted perfectly. I will definitely be making these again.