Caramelized Onion Mustard Tart Recipes

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.

POTATO AND CARAMELIZED ONION TART

Steps:

• Preheat the oven to 375 degrees F.
• Prepare the pie crust according to package instructions. Flatten into a disk and chill in the refrigerator while preparing the filling.
• In a large saute pan over medium heat, heat the canola oil. Add the onions and season with salt and pepper. Cook, stirring occasionally, until the onions are dark golden brown, 10 to 15 minutes. Remove from the heat.
• In the meantime, using the slicing blade attachment of a food processor, or with a box grater, slice half the potato into 1/8-inch-thick slices. Place in cold water to avoid browning. (Reserve the remaining half of potato for another use, such as Round 2 Recipe Open Faced Roast Pork and Onion Sandwich.)
• In a small bowl, stir together the cream cheese, Italian seasoning, mustard and season with salt and pepper.
• Remove the pie crust from the fridge and roll into a 12-inch round about 1/4-inch thick. Place on a parchment-lined baking sheet. Spread the cream cheese mixture in an even layer over the pie crust, making sure to leave a 1-inch border around the edge.
• Dry the potatoes thoroughly and place an even layer on top of the cream cheese, overlapping slightly to fit and keeping 1/2-inch from the edge of the cream cheese. Over the top of the potatoes place an even layer of caramelized onions. (Reserve 1/2 cup of the onions for another use, such as Round 2 Recipe Open Faced Roast Pork and Onion Sandwich.) Fold over the edges of the crust to create a 1-inch-wide border around the tart filling.
• Bake until the crust is golden and the potatoes are cooked through, 30 to 35 minutes. Allow to cool for 5 minutes before slicing.

CAULIFLOWER AND CARAMELIZED ONION TART

Steps:

• Position rack in center of oven; preheat to 425°F. Toss cauliflower with 1 tablespoon olive oil in large bowl. Spread on large rimmed baking sheet, spacing apart. Sprinkle with salt and pepper. Roast 15 minutes; turn florets over. Continue roasting until tender, about 25 minutes longer. Cool cauliflower, then thinly slice. Drizzle with truffle oil; toss. Reduce oven temperature to 350°F.
• Press pie crust onto bottom and up sides of 9-inch-diameter tart pan with removable bottom. Line pie crust with foil; fill with pie weights. Bake crust 20 minutes. Remove foil and pie weights; bake until crust is golden, about 5 minutes, pressing crust with back of fork if bubbles form. Cool crust. Maintain oven temperature.
• Heat remaining 1 1/2 tablespoons olive oil in heavy large skillet over medium heat. Add onion; sprinkle with salt and pepper. Cook until onion is deep golden brown, stirring occasionally, about 40 minutes. Cool slightly. DO AHEAD Can be made 1 day ahead. Store crust at room temperature. Cover and chill cauliflower and onion separately.
• Brush bottom and sides of crust with mustard. Spread onion in crust. Arrange cauliflower evenly over. Set tart on rimmed baking sheet. Whisk eggs and next 4 ingredients in medium bowl. Stir in Gruyère. Pour mixture over filling in tart pan; sprinkle with Parmesan. Bake until tart is golden and center is set, about 40 minutes. Transfer to rack; cool 15 minutes before serving.

CARAMELISED ONION PUFF PASTRY TART

Steps:

• Finely slice the onions, then put them in a large, lidded pan with the oil and cook over a low heat for 30 mins, stirring from time to time.
• Remove the lid and turn up the heat, cooking the onions until they brown and caramelise, stirring often.
• Heat oven to 180C/160C fan/gas 4. Unroll the pastry and place on a greased baking sheet. Using a sharp knife, cut a 2cm border around the edge of the pastry, going almost but not quite through the pastry. Glaze the edge of the pastry with beaten egg.
• Spread the mustard over the base of the tart and pile on the onions, spreading them out to meet the edge. Mix the breadcrumbs, Parmesan and thyme leaves together, and sprinkle this topping evenly over the onions. Bake the tart for 18-20 mins or until the pastry is golden brown.

CARAMELIZED ONION TART

Steps:

• Remove papery outer skin from garlic (do not peel or separate cloves). Cut top off of garlic bulb. Brush with 1 tablespoon oil. Wrap bulb in heavy-duty foil. Bake at 425° for 30-35 minutes or until softened., Meanwhile, in a large skillet, cook onions and vinegar in remaining oil over medium heat for 15-20 minutes or until onions are golden brown, stirring frequently. Set aside., Cool the garlic for 10-15 minutes. Squeeze softened garlic into a food processor; add the flour, butter and salt. Cover and process until mixture resembles coarse crumbs. Press onto the bottom and up the sides of an ungreased 11-in. fluted tart pan with a removable bottom. Bake at 350° for 15 minutes., In a food processor, combine the goat cheese, eggs, parsley, salt and pepper; cover and process until blended. Sprinkle 1/2 cup Parmesan cheese into crust; top with basil. Spread goat cheese mixture into crust., Arrange onions over top; sprinkle with remaining Parmesan cheese. Bake for 25-30 minutes or until set.

CARAMELISED ONION TART

Steps:

• Heat oven to 190C/fan 170C/gas 5. Slide a baking sheet in to heat. Roll the pastry out enough to line a deep 20cm flan tin or a shallow 23cm one. Chill for 10 mins.
• Put a few balls of crumpled foil in the base of the pastry case and bake on the baking sheet for 10 mins. Remove the foil and bake for 5 mins more, until light golden.
• Meanwhile, cook the onions in the oil until starting to soften, then add thyme, pepper, and salt if you want to. Cook slowly for about 15 mins until the onions are soft and tinged brown.
• Beat the eggs, beat in the milk and half the cheese and some pepper. Spread the onions over the flan case and pour in the egg mix. Sprinkle the remaining cheese on top and bake the tart on the baking sheet for 30-40 mins until the filling is firm and golden, and the pastry crisp. Serve warm or cold.

CARAMELIZED ONION TARTLETS

Steps:

• Preheat the oven to 375 degrees F (190 degrees C).
• Heat butter in a skillet over medium heat and stir in onion. Pour in red wine to cover the bottom of the pan and sprinkle with sugar. Cook and stir until onions are tender and translucent, 10 to 15 minutes.
• Combine heavy cream, mozzarella cheese, cayenne pepper, salt, and black pepper in a bowl. Stir into onion mixture.
• Cut pie crusts into 3-inch circles using a cookie cutter. Place circles into the bottom of 12 muffin cups in a muffin tin.
• Spoon onion mixture evenly on top of the tart crusts.
• Bake in the preheated oven until a toothpick inserted into the centers comes out clean, about 20 minutes. Let cool 10 minutes before popping tartlets out of the muffin tin.

ONION TART WITH MUSTARD AND FENNEL

Steps:

• Stir together yeast and warm water in a small bowl and let stand until foamy, about 5 minutes. (If mixture doesn't foam, start over with new yeast.)
• Put 1 1/2 cups flour in a medium bowl, then make a well in center of flour and add yeast mixture to well. Stir together egg, 1 tablespoon oil, and 1 1/2 teaspoons salt with a fork. Add egg mixture to yeast mixture and mix with a wooden spoon or your fingertips, gradually incorporating flour, until a soft dough forms. Transfer dough to a floured surface and knead, working in additional flour (up to 1/4 cup) as necessary, until smooth and elastic, about 5 minutes. Transfer dough to an oiled bowl and turn to coat. Cover with plastic wrap and let rise in a draft-free place at warm room temperature until doubled, 1 to 1 1/2 hours.
• While dough rises, heat remaining 1/3 cup oil in a 12-inch heavy skillet over medium-high heat until it shimmers, then sauté fennel seeds until a shade darker, about 30 seconds. Stir in onions, remaining teaspoon salt, and 1/2 teaspoon pepper, then reduce heat to medium-low and cover onions directly with a round of parchment paper. Cook, stirring occasionally, until onions are very tender and golden brown, 1 to 1 1/4 hours.
• Preheat oven to 375°F with rack in middle.
• Knead dough gently on a floured surface with floured hands to deflate. Pat out dough on a large heavy baking sheet (preferably blue steel) into a 15- by 12-inch rectangle, turning up or crimping edge, then brush mustard evenly over dough, leaving a 1/2-inch border around edge. Spread onions evenly over mustard, then sprinkle evenly with cheese.
• Bake tart until crust is golden brown, 30 to 35 minutes. Cut into 2-inch squares or diamonds and serve warm or at room temperature.

CARAMELIZED ONION & MUSTARD TART

Steps:

• Melt the butter with the oil in a large frying pan over medium-low heat. Add the onions and garlic. Season to taste with salt & pepper and cook for 30 minutes, stirring often, until golden. Take off heat and set aside.
• Preheat the oven to 200°C Line a pie pan or loose bottomed tart tin with the pastry/pie crust. Line with greaseproof paper (wax paper) and fill with beans and bake for 15 minutes. Remove the paper and beans and cook for another 10 minutes until golden.
• Lower the oven temperature to 180°C In a bowl, whisk together the eggs, yolks, mustard and cream. Stir in the onions and the chopped mint.
• Spoon the mixture into the pie/pastry crust and bake for 20 minutes or until just set. Cool slightly before serving.

CARAMELIZED ONION TART

Steps:

• Prepare pastry: In large bowl, combine flour and 1/4 teaspoon salt. With pastry blender or 2 knives used scissors-fashion, cut in shortening and butter until mixture resembles coarse crumbs.
• Sprinkle in ice water, 1 tablespoon at a time, mixing lightly with fork after each addition, until dough is just moist enough to hold together. Shape dough into disk; wrap in plastic wrap. Refrigerate 30 minutes or overnight. (If chilled overnight, let dough stand 30 minutes at room temperature before rolling.).
• On lightly floured surface, with floured rolling pin, roll dough into 11-inch round. Carefully place dough in 9-inch round tart pan with removable bottom. Gently press dough onto pan bottom and up side, without stretching. Fold overhang in and press dough against side of pan so it extends 1/8-inch above pan rim. Refrigerate or freeze tart shell 10 to 15 minutes to firm slightly.
• Preheat oven to 425°F Place pan with tart shell on cookie sheet. Line tart shell with parchment or foil and fill with pie weights or dried beans. Place in oven and bake 15 minutes.
• Meanwhile, prepare Onion Filling: In medium bowl, with wire whisk, beat eggs, transfer 1 tablespoon beaten eggs to cup. To eggs in bowl, add milk, thyme, 1/4 teaspoon salt, and 1/4 teaspoon coarsely ground black pepper, and mix until blended; set aside.
• In 12-inch non-stick skillet, heat oil on medium 1 minute. Add onion, cook 20 minutes or until golden, stirring occasionally.
• Remove parchment and weights from pie shell; brush with egg from cup to seal. Bake tart shell 10 to 12 minutes longer or until golden. Transfer pan with tart shell to wire rack.
• Spread onion evenly into warm tart shell; sprinkle with Gruyere. Carefully pour egg mixture over onion. Bake tart 23 to 25 minutes or until puffed and custard jiggles only slightly in center. Cool on wire rack 10 minutes to serve warm. Removed side of pan before serving.