Best Ultimate Triple Onion Tart Recipes

ULTIMATE TRIPLE ONION TART

Steps:

• Preheat oven to 375 degrees F. Let piecrust stand according to package directions.
• In a 12-inch skillet heat butter over medium heat; add onion, leek, shallots, sugar, nutmeg, pepper, and 34 teaspoon salt. Cook about 8 minutes or until tender but not browned, stirring occasionally. Reduce heat. Stir in cream cheese until melted. Stir in Swiss and Monterey Jack cheeses until combined.
• In a large bowl combine eggs and cream. Gradually stir in onion mixture until combined. Ease piecrust into 9-inch pie plate; pour onion mixture into piecrust. Fold edge of crust over filling, pleating as necessary. Bake, uncovered, about 40 minutes or until crust and top are golden brown and a knife inserted near center comes out clean. Cool on a wire rack for 15 to 20 minutes. Cut in 16 wedges. Serve warm. Makes 16 appetizer servings.

ONION TART

Steps:

• Line unpricked pastry shell with a double thickness of heavy-duty foil. Bake at 450° for 8 minutes. Remove foil; bake 5 minutes longer. Cool on a wire rack. , In a small skillet, saute onions in oil until tender; cool. In a food processor, combine the eggs, feta cheese, salt, pepper, nutmeg and hot pepper sauce; cover and process until smooth. Gradually add cream and milk; process until blended., Brush the inside of crust with mustard. Sprinkle the green onions, chives and sauteed onions over crust. Carefully pour egg mixture over onions. Top with Parmesan cheese. , Bake at 375° for 30-40 minutes or until a knife inserted in the center comes out clean.

ULTIMATE ONION TART

Steps:

• Heat oven to 190C/fan 170C/gas 5. Roll out the pastry on a lightly floured surface and use to line a deep 23cm fluted flan tin. Line with baking paper and fill with baking beans. Bake blind for 15 mins.
• Heat the butter and oil in a large frying pan, then gently fry the onions, covered, for about 30 mins until completely softened, but still pale in colour.
• Beat the eggs and cream together in a bowl, then add the cheese and some seasoning. Stir in the onions, then spoon the mixture into the flan case. Bake for 25-30 mins until lightly set and browned.

ULTIMATE TRIPLE ONION TART

Steps:

• Preheat oven to 375°F Let pie crust stand according to package directions.
• In a 12-inch skillet heat butter over medium heat; add onion, leek, shallots, sugar, nutmeg, pepper, and 3/4 teaspoons salt. Cook about 8 minutes or until tender but not browned, stirring occasionally.
• Reduce heat. Stir in cream cheese until melted.
• Stir in Swiss and Monterey Jack cheeses until combined.
• In a large bowl combine eggs and cream. Gradually stir in onion mixture until combined.
• Ease pie crust into 9-inch pie plate; pour onion mixture into pie crust. Fold edge of crust over filling, pleating as necessary.
• Bake, uncovered, about 40 minutes or until crust and top are golden brown and a knife inserted near center comes out clean.
• Cool on a wire rack for 15 to 20 minutes. Cut in 16 wedges. Serve warm.

CARAMELIZED ONION POTATO TART

Steps:

• Preheat oven to 350 degrees F.
• Set a large skillet over medium heat and add 4 tablespoons of olive oil. Add sliced onions and cook over medium heat for 10 to 12 minutes until they are tender and brown all over.
• Using a mandolin (or sharp knife), finely slice the potatoes into rounds (you can place them in a bowl with a wet towel over the top to stop them from going brown while you work). Place the potatoes into a bowl and season with salt and pepper. When ready, add the onions and toss to combine without breaking potatoes.
• Add about 1 tablespoon water to the same pan the onions were cooked in and allow it to come to a bubble. Using layered paper towels, wipe the pan clean.
• Add some extra-virgin olive oil to the pan and add the potatoes to the pan, making sure the potatoes are flat. Top with the diced butter.
• Take a piece of parchment paper and fold in half. Find the middle of the parchment along the crease and hold in place with your finger. Taking the right side of the parchment, pull it towards the center and fold it straight down to create a diagonal edge. Fold the parchment in half to create a triangle. Place the pointed edge in the middle of the saute pan on top of the potatoes to find its radius. Make a marker of where the pan edge ends (or starts). At this point you can cut the parchment at this marker and open to reveal a circle.
• Cover the potatoes with the parchment paper and press down. Drizzle some extra-virgin olive oil over the top so it down burn and rub it in.
• Place the pan into the oven on the top rack and bake for about 45 minutes.
• When done remove from oven and run a knife around the edge to separate from the pan. Place a large plate on top of the saute pan and flip. Remove the saute pan. Allow to cool slightly before cutting into slices.

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.

DEBORAH MADISON'S FRAGRANT ONION TART

Steps:

• To make the filling, cut onions in half, peel them, and if they are strong, put them in a bowl of cold water. It doesn't take long for that to reduce their sting. Finely dice them.
• If you're using bacon, fry until browned and nearly crisp, then scoop out and drain on a paper towel. Throw out bacon grease, wipe out pan and add 2 tablespoons butter. When melted, add onions, thyme and 3/4 teaspoon salt. Cook over medium heat, stirring occasionally, about 25 minutes. The onions needn't be caramelized, but should just take on a faint golden hue. When done, let them cool slightly. Taste for salt (they'll be very sweet, you might want to add more) and season well with pepper.
• While onions cook, whisk eggs with crème fraîche and milk. Stir in cooled onions, cheese and bacon, if using.
• To make the crust, put flour and 1/4 teaspoon salt in the bowl of a stand mixer fitted with a paddle attachment. Add 6 tablespoons butter and turn mixer to low speed until butter has broken into small, pebble-size pieces. Drizzle in ice water until dough looks clumpy and damp. (You'll use about 3 tablespoons, fewer if butter was soft.) Form dough into a disk or a rectangle to correspond to the shape pan you're using. You have a few choices: a 9-inch tart pan, a square tart pan or a rectangular one (11 by 81/2 inches), all with removable bottoms. Wrap dough in plastic and refrigerate.
• Heat oven to 400 degrees. Roll dough to fit tart pan, then drape dough in pan. Neatly press dough into pan and shape it. Set it on a sheet pan. Pour onion mixture into tart pan, and bake until surface is golden and browned in places, 45 to 50 minutes. Let cool to warm before cutting into slices and serving.

THE ULTIMATE MAKEOVER: ONION TART

Steps:

• Slice the onions into small, thin, wedge-shaped pieces. Heat the rapeseed oil in a large, preferably non-stick, sauté or deep frying pan. Stir in the onions and fry over a medium heat for about 20 mins. Stir only occasionally so they can cook fairly undisturbed and caramelise underneath. When done, they should be well caramelised and sticky.
• Meanwhile, prepare the base. Heat oven to 190C/170C fan/gas 5 and put in a baking sheet. Put the flour and butter in a bowl with a pinch of salt and rub with your fingers until it resembles rough crumbs. Mix the yogurt and milk, pour it into the flour mixture and work together briefly with a knife until the dough just comes together. Remove from the bowl and gently press together to form a ball. Do not overwork the mixture.
• Roll dough out thinly on a lightly floured surface and use to line a 23cm round, fluted, loose-based flan tin, about 2.5cm depth, pressing it with your fingers into the flutes. Sit the tin on. If the dough is a little sticky, dust your fingers in some flour.
• Beat the eggs in a medium bowl, then stir in the crème fraîche, thyme, mustard and seasoning. Spoon and spread half of the onions into the lined base, season with pepper then scatter over half the cheese. Pour the egg mixture over the top, then scatter over the rest of the onions and cheese. Sit the tin on the hot baking sheet and bake for 25-30 mins until the base and filling are cooked. Remove and cool for about 10 mins, then remove from the tin and serve while fresh and warm.

ONION TART

Steps:

• To make the pastry, process the flour, butter and water together in a food processor for a few minutes until a rough dough forms. Remove, wrap in plastic wrap and refrigerate for 30 minutes.
• Preheat the oven to 180°C (350°F/Gas 4).
• Roll the dough out on a floured bench and gently press into the tin. Trim the pastry to fit and reserve the left-over pastry to patch any cracks.
• To blind-bake the tart, line the pastry shell with foil and fill with baking weights or uncooked rice or beans. Bake until cooked, about 20 minutes. Remove the foil and weights and bake for an additional 15-20 minutes until lightly golden. If there are any cracks, patch with the left- over pastry.
• While the tart shell is baking, prepare the filling.
• In a large frying pan over low to medium heat, sauté the onion in the oil until very soft and light brown. This may take up to an hour. Set aside to cool slightly. Beat the egg yolks with the cream. Add the nutmeg and season well with salt and pepper. Stir the onion through the cream mixture.
• Carefully fill the pastry shell with the filling, place in the oven and bake for 40-45 minutes, or until the filling is set. Serve warm or at room temperature.

ONION TART

Steps:

• Sift the flours, salt; mustard powder and cayenne into a bowl, and then rub in the margarine until you get a crumbly mixture.
• Stir in the cheese and add enough cold water to make dough that leaves the bowl clean.
• Wrap the dough in plastic and put in the fridge for 30 minutes.
• Melt the butter in a heavy based frying pan, add the onions, get them coated in the butter, cook them uncovered on a medium heat for approx 30 minutes, they have to be reduced and turned a deep brown.
• Stir from time to time, if they are still pale at the end of the cooking time, turn up the heat and cook for another 10 minutes until they have the right color.
• Preheat oven to 350F and put a baking sheet in the oven.
• Grease an 8 inch fluted flan tin, roll out the pastry and line the tin, prick the base with a fork, place the tin on the baking sheet in the oven and bake for 15 minutes.
• Remove from the oven and brush with some beaten egg (from the filling) return to the oven for 5 minutes.
• Then spread the onions all over the base of the flan, mix the eggs with the milk, salt and pepper, and pour as much as possible over the onions, you might have some left it depends on how much the onions have reduced.
• Sprinkle the cheese over the top and bake for 30 minutes (on the baking sheet again) or until the filling is golden brown and puffy.

ONION TART

Steps:

• Blend flour and salt in the bowl of a food processor. Scatter butter over flour, top with lid and pulse 12 pulses to cut butter into flour to a coarse meal consistency.
• Dump butter-flour mixture into a medium stainless bowl. Make a well in the center and pour ice-cold water into the well.
• Using a flexible plastic dough scraper instead of your warm hands, bring the dough together by folding and pressing. Be firm and brisk and get the dough past its shaggy stage into a neat disk, trying to avoid using your hands or too much kneading. Refrigerate the dough for 30 minutes. Heat the oven to 375 degrees.
• Meanwhile, cut the onions in half and peel them. Slice the halves with the ribs (root end to sprout end direction), not against, to create julienne slices rather than half moons.
• In a wide sauté pan over medium-low heat, melt the bacon fat and slowly sweat the onions until they are caramelized. Take all the minutes you need - 25 or so - to let them soften to translucent, then to let the water they release start to evaporate, then to allow the sugars they contain to start to brown in the pan, so that you end up with soft, sweet and evenly browned onions. This is achieved by a slow caramelization. Set onions aside to cool.
• Roll tart dough out to a 1/4-inch-thick round, and drape over a round 10-inch fluted false-bottom tart pan. Lay dough into the pan, gently pressing into the bottom, and roll the pin across the pan to cut off the excess dough. Use your fingers to press the edges into the flutes, accentuating the shape of the dough edge. Dock the bottom of the dough with the tines of a fork, weight the pastry with beans or weight and blind-bake for 25 minutes.
• In a bowl, beat the egg with the cream. Stir in the caramelized onions. Season with pepper, nutmeg and salt to taste. Stir well, and make sure the onions are all evenly coated with the custard.
• Remove tart shell from oven, and slip it onto a baking sheet. Remove weights, fill with the onion-custard mixture and distribute it evenly. Return tart to oven on the sheet, and bake for 25 minutes, or until custard has set, the tops of the onions start to achieve a deeper brown and the dough is dark golden brown at the edges.
• Remove from the ring, and allow to cool just a few minutes on the rack, so that the piping hot tart shell can kind of tighten up enough to be sliced with a sharp chef's knife. (In the first few minutes straight out of the oven, the dough is kind of soft from the heat, possibly giving you the false impression that you have a soggy tart. Let it sit on the rack just to shake off this initial soft stage and to recrisp and refirm, which it will.) Cut into wedges, and serve while hot.