Caramelized Onion And Gruyere Tarts Food

CARAMELIZED ONION TART

Steps:

• Thaw the pastry sheet at room temperature for 40 minutes or until it's easy to handle. Heat the oven to 400 degrees F. Line a baking sheet with parchment paper or spray with vegetable cooking spray.
• Heat the oil in a 12-inch skillet over medium heat. Add the onion and cook for about 15 minutes or until golden, stirring often. Season to taste and let cool.
• Unfold the pastry sheet on a lightly floured surface. Roll into a 12-inch square. Place on the prepared baking sheet. Brush the edges of the square with water. Fold over the edges 1/2 inch on all sides, pressing firmly with a fork to form a rim. Prick the pastry thoroughly with a fork.
• Spread the onion mixture over the pastry crust. Top with the gruyere and parmesan cheeses and sprinkle with the chives.
• Bake for 20 minutes or until golden and bubbly. Cool for 5 minutes on a wire rack. Cut into approximately 3 x 2-inch rectangles. Serve warm.

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.

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.

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.

CARAMELIZED ONION AND SWEET POTATO TART

Steps:

• Make Pastry: combine flour, butter, shortening and salt and lightly mix until it resembles breadcrumbs. Blend in enough water to form a dough. Wrap in clingfilm and refrigerate for at least 30 minutes.
• To make Tart: Pare yukon gold potatoes, slice 1/4 inch thick and put in cold water.
• Pare and slice sweet potatoes and stand in cold water. do the same with the parsnips.
• Steam potatoes, parsnips and sweet potatoes until al dente. Set aside.
• Heat oil and saute onions until caramelized and golden brown in color. Add Herbes de Provence and garlic and saute for 3 more minutes. Set aside.
• Mix manchego, gruyere and cream together in bowl and set aside.
• Preheat oven to 350°F.
• Roll out pastry and press into bottom and sides of a 9 inch springform pan.
• Layer potatoes, sweet potatoes and parsnips in tart and sprinkle onions and cream/cheese. Repeat until all ingredients are used.
• For maximum appearance make sure to finish the top layer with sweet potatoes, then caramelized onion.
• Bake 45 minutes in preheated oven.
• Remove from oven and allow to sit for 20 minutes.