Best Mushroom Onion Gruyere Tart Recipes

EASY TART WITH CARAMELIZED ONIONS, MUSHROOMS AND GRUYèRE

Steps:

• Heat a large saucepan over medium-high heat. When the pan is hot, add the olive oil and the butter together, followed by the sliced onions. Cook for about 10 minutes or until the onions wilt and start to brown. At that point add the next three ingredients (sugar, vinegar, salt and pepper). Reduce the heat and cook gently, uncovered for about 20 more minutes or until the onions are completely caramelized. Add a little water if the onions look like they are drying out. Taste and adjust the seasoning. Remove the onions to a separate bowl.
• Add the sliced mushrooms to the same pot and sauté (without oil) for a few minutes until they release their moisture. At that point, add a little olive oil and the thyme leaves and cook for a few minutes, stirring frequently. Once the mushrooms start lightly brown, add the sliced potatoes and the fennel seeds. Season everything with some salt and pepper and cook for a few more minutes, until the potatoes soften a little. Set the mixture aside to cool.
• Unfold the thawed sheet of puff pastry and place it on a work surface. Roll it out into a 10"x14" rectangle and remove it to a baking sheet lined with parchment paper. Prick with a fork every few inches to prevent the pastry from bubbling while it bakes. Using a very sharp knife, score the perimeter of the dough about ¼- to ½-inch from the edge.
• Spread the cooled onions evenly over the puff pastry. Top with the sautéed mushrooms and potatoes and sprinkle with the Gruyère cheese. (Refrigerate if not baking immediately).
• Preheat the oven to 375°F. Bake the puff pastry on the middle rack for 25-30 minutes or until the cheese is bubbling and crust is nice and golden. Allow the tart to cool for 10 minutes then cut it into 20 little rectangles. Serve warm or at room temperature.

MUSHROOM-GRUYERE TART

Steps:

• Crust: Preheat oven to 425 degrees. In a large bowl, whisk together both flours and salt. Stir in tahini, oil, and 3 tablespoons water. Knead in bowl until a ball forms; add up to 1 tablespoon more water, if needed. Transfer dough to a lightly floured surface. Roll dough into a 12-inch round and fit it into a 9 1/2-inch tart pan with a removable bottom. Trim flush with rim. Prick bottom of dough all over with a fork. Bake, rotating pan halfway through, until crust is golden brown and crisp, about 35 minutes. Let cool on a wire rack.
• Filling: Reduce oven temperature to 350 degrees. In a large skillet, heat oil over medium. Add shallot, garlic, and red-pepper flakes; cook, stirring, until shallot is softened, about 4 minutes. Add mushrooms and salt. Cook until mushrooms are tender and golden brown in spots, 6 to 8 minutes. Let cool slightly.
• In a large bowl, combine cheese, eggs, parsley, and mushroom mixture. Pour filling into crust. Bake tart, rotating pan halfway through, until just set, 30 to 35 minutes. Transfer pan to a wire rack and let tart cool slightly, about 10 minutes. Top with parsley, and serve warm or at room temperature with more red-pepper flakes. (Tart can be refrigerated, covered, overnight; bring to room temperature or reheat before serving.)

CARAMELIZED ONION, MUSHROOM AND GRUYERE QUICHE WITH OAT CRUST

Steps:

• Preheat the oven to 400 degrees F. Spray a 9-inch pie dish with cooking spray.
• To prepare the crust, put the oats, flour and salt in the bowl of a food processor and pulse 3 times to combine. Add the butter and pulse about 12 times, until you get a pebbly course texture. Add the buttermilk and pulse 3 to 5 times more to combine. Form the mixture into a ball and place it between 2 large pieces of waxed paper. Roll out into a circle about 10 inches in diameter.
• Remove the top sheet of waxed paper. Transfer the crust, still on the other piece of waxed paper to the pie dish, then remove the waxed paper from the top. Press the crust gently into the dish. Bake for 9 minutes, then let cool.
• To prepare the filling, heat 2 teaspoons of oil in a large nonstick pan over a medium-low heat. Add the onion and cook, stirring occasionally, until golden brown and caramelized, about 20 minutes. Transfer the onions to a bowl. Add the remaining 2 teaspoons of oil to the pan and heat over a medium-high heat. Add the mushrooms and cook, stirring occasionally, until they have released their water and begin to brown, about 6 minutes. Add the onions back to the pan, stir in the salt, pepper, mustard and thyme.
• In a medium bowl whisk together the eggs, egg whites and evaporated milk.
• Sprinkle the cheese into the pie crust. Top with the mushroom-onion mixture and pour the egg mixture on top. Reduce oven temperature to 350 degrees F. Bake for 35 minutes or until knife inserted in the middle comes out clean. Let stand for 5 minutes before cutting into 6 wedges and serving.
• Excellent source of: Protein, Riboflavin, Phosphorus, Selenium
• Good source of: Vitamin A, Niacin, Vitamin D, Pantothenic Acid, Calcium, Iodine, Iron, Potassium

GRUYERE AND MUSHROOM TARTS

Steps:

• Preheat oven to 325 degrees F.
• In a large saute pan over medium-high heat, add the oil. Add the garlic and saute for a few seconds. Add the mushrooms, a pinch of salt and pepper, chives, and sherry vinegar. Cook until softened and slightly crisp, about 3 minutes. Remove the mushroom mixture from the pan and add to a food processor. Pulse a few times to chop finely chop the mushrooms and reserve.
• In a large bowl, add eggs, cream, and salt and pepper, to taste. Beat well with a whisk until evenly incorporated.
• Line the muffin tins with the tart shells and divide the mushroom mixture among the shells. Cover with the egg custard and top with the cheese. Bake until the custard sets, about 22 minutes. Remove from the oven to a serving tray and serve.

MUSHROOM ONION GRUYERE TART

Steps:

• Preheat oven to 450 degrees F.
• Line a cookie sheet with a sheet of bakers parchment paper.
• Place a sheet of puffed pastry flat on parchment.
• In skillet over medium low heat add olive oil and butter.
• Saute onion for 15 minutes or until translucent. Stir frequently.
• Add mushrooms to skillet .
• Saute until tender about 15 minutes. Stir frequently.
• Add salt and pepper to mushroom onion mixture (to taste).
• Remove from heat and set aside.
• Mix egg and milk together with a whisk until well blended.
• Paint the puffed pastry with the honey mustard leaving a 1/2 inch border.
• Add the mushroom onion mixture on top of the mustard leaving about a 1/2 inch border.
• Sprinkle the cheese on top of the mushroom onion mixture.
• Paint the border of the puffed pastry dough with egg wash (Discard leftover egg wash).
• Place tart in oven and bake for 15-20 minutes until pastry has puffed up and browned.
• Enjoy!

ONION GRUYERE TART

Steps:

• Cut onions into slices about 1/4 inch thick. Chop coarsely.
• Heat butter and oil in heavy skillet. Add onions and cook, covered, over medium heat about 10 minutes, or until onions are limp and begin to render liquid. Add pinch of sugar.
• Uncover onions and cook over medium-high heat 30 to 45 minutes. Stir frequently with a wooden spoon or spatula to scrape up brownings in pan. The onions should be a deep brown and reduced to a small mass. They must be watched carefully and stirred to prevent scorching and to ensure even browning.
• Transfer onions to a bowl. Add wine to skillet and boil, scraping up pan brownings, until liquid is reduced to a thick glaze. Add glaze to onions, along with salt, nutmeg, cream and egg. Adjust seasoning. (Dish may be prepared to this point a day in advance and refrigerated.)
• Preheat oven to 375 degrees.
• Grate cheese and distribute half of it on bottom of chilled pastry shell in pastry tin. Distribute onion mixture evenly over cheese; top with remaining cheese.
• Bake 40 to 45 minutes. If top browns too much, reduce heat slightly toward the end. Serve as a first course, warm or at room temperature. Tart can be made a few hours ahead, but do not refrigerate.

WILD MUSHROOM AND GRUYèRE TART WITH FRESH HERB SALAD

Steps:

• For tart:
• Puree ricotta in processor until smooth, about 1 minute. Add 1 yolk and 2 teaspoons oil and blend. Transfer ricotta mixture to bowl; fold in crème fraîche.
• Heat remaining 2 tablespoons oil in heavy large skillet over medium-high heat. Add mushrooms and sauté 7 minutes. Mix in thyme. Season to taste with salt and pepper. Add butter and sauté until mushrooms are tender, about 4 minutes longer. Mix in green onions.
• Preheat oven to 400°F. Roll out puff pastry on lightly floured surface to 13x9-inch rectangle. Using sharp knife and starting 1/4 inch in from edge, cut score line around entire perimeter of dough, cutting halfway through. Brush 1/4-inch dough border with glaze. Transfer dough to ungreased heavy baking sheet. Spread ricotta mixture over dough, inside border. Top with half of mushrooms, half of Gruyère, then remaining mushrooms and Gruyère. Bake tart until crust is golden and Gruyère melts, about 25 minutes.
• Meanwhile, prepare salad:
• Toss herbs with oil and lemon juice in small bowl. Season with salt and pepper.
• Cut tart into rectangles. Transfer to plates. Garnish with herb salad.

GRUYERE & CARAMELIZED ONION TARTS

Steps:

• In a large skillet, saute onion in oil and butter until softened. Reduce heat to medium-low; cook, uncovered, for 40 minutes or until deep golden brown, stirring occasionally. Add garlic; cook 1 minute longer. Stir in salt and pepper., Unfold each puff pastry sheet onto an ungreased baking sheet. Using a knife, score decorative lines around the edges of each pastry. Spread onion mixture to within 1/2 in. of edges. Sprinkle with cheeses and thyme., Bake at 400° for 12-15 minutes or until golden brown. Cut each tart into 12 pieces. Serve warm.