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This onion tart is a young and scrumptious puff pastry topped with caramelized onions makes the proper appetizer or facet dish! It’s insanely scrumptious and price being served at any celebration or get-together!
I completely love an excellent appetizer as a result of I really like an excellent celebration! And the meals is what makes it or breaks it! Check out this unbelievable 5 minute dip, these scrumptious egg rolls, or these hen wings!

What’s an Onion Tart?
An onion tart is a unbelievable finger meals appetizer that may be served for any event and any visitor! You begin out with a big puff pastry, and also you high it with some onions which were cooked and caramelized in sugar. When you add the caramelized onion to the puff pastry, you add some cheese and thyme, and then you definitely bake them collectively! Slice it up and serve it to your friends on a platter!
Describing this as an appetizer is nothing in comparison with consuming it! The puff pastry cooks to the proper golden brown, which supplies a slight crunch if you chunk it. While you mix that with the deliciously flavored and caramelized textured onions, properly, it’s recreation over. It melts in your mouth, and also you actually gained’t have the ability to cease your self from coming again for seconds! Don’t miss out! Prepare dinner this on your subsequent feast, and your friends will go loopy over it!
What Components are in an Onion Tart Recipe?
The components on this recipe are easy and straightforward! In reality, you might have already got most of them able to go in your kitchen! Seize something that you simply don’t have already got on the retailer and get cooking! Your tastebuds are ready! Try the recipe ard on the backside of the publish for actual measurements.
- Puff Pastry: Tkae the time to thaw your puff pastry within the fridge, in a single day.
- Candy Yellow Onions: Slices these up into skinny , even items in order that that they cook dinner collectively on the identical time.
- Olive Oil: I used common olive oil to cook dinner the onions in.
- Brown Sugar: This isn’t solely scrumptious however essential to get that caramelized glaze on the onions.
- Kosher Salt: This may improve the entire flavors on this recipe.
- Gruyere Cheese: When you don’t have this cheese then you possibly can strive gouda, feta or mozzarella as an alternative!
- Recent Thyme: I like to make use of contemporary thyme as a result of it has a stronger and scrumptious style.
- Heavy Cream: That is what you’ll use to get that golden brown edge on the puff pastry!
How one can Make and Onion Tart
This scrumptious recipe takes lower than an hour from begin to end. And that features the entire cooking time. Besides this tastes higher! It’s an ideal go-to for any appetizer choices and feels fancy, like one thing that you’d order at a restaurant…
- Prepare dinner onions: Warmth oil in a big deep pan on medium-high warmth. Stir within the onions and cook dinner for about 10 minutes or till softened and wilted.
- Caramelize: Add the salt and brown sugar and cook dinner uncovered for an extra 20 minutes till the onions are caramelized. Put aside and permit to chill whilst you put together the tart. Make certain your caramelized onions are cooled sufficient earlier than you set them on the chilly tart.
- Preheat: Preheat the oven to 400° Fahrenheit.
- Prep pastry puff: Rigorously unroll every pastry tart. Place them barely overlapping on a baking sheet lined with parchment paper. Flippantly press the 2 tarts creating one giant rectangular-sized tart. Fold up the perimeters round the entire tart to create a fairly completed edge. Prick with a fork each inch or so to assist forestall effervescent whereas baking.
- Add cheese: Sprinkle the cheese evenly on the tart.
- Add onion combination: Evenly lay the onions on high of the pastry.
- Brush with cream: Utilizing a pastry brush, brush the folded edges of the pastry with heavy cream to create that golden brown crust. Sprinkle on the thyme leaves.
- Bake: Bake for 18-20 minutes or till cheese has melted and pastry is crisp. Cool for five minutes earlier than chopping the caramelized onion tart into squares or triangles. Garnish with further thyme leaves if desired.

Useful Ideas
I discovered a variety of success utilizing the next suggestions when making the onion tart. The recipe can appear intimidating, however when you comply with the following pointers, you’ll find success in making the tart!
- Thaw: Don’t neglect to plan forward to thaw the puff pastry dough within the fridge the night time earlier than.
- Maintain it cool: Maintain the puff pastry refrigerated till prepared to make use of. The chilled pastry creates a flakey end result.
- Prick it: Make certain to prick the pastry with a fork to forestall the pastry from effervescent.
- Cooking onions: Cooking the onions low and gradual is finest for bringing out the sweetness. Be affected person! Enable the onions to chill for about 10 minutes earlier than assembling. This fashion the pastry stays chilled sufficient earlier than baking.
- Cheese choices: Gorgonzola, brie, blue, gouda, feta, mozzarella, swiss chees or actually any cheese you assume would pair properly with the flavors.
- Use parchment paper: Parchment paper is your finest pal when working with puff pastry. It additionally makes cleanup straightforward!
- Ideas for serving: The tart may be sliced into squares, strips, or triangles. It serves superbly any means!
- Garnish concepts: I like to garnish with contemporary herbs earlier than serving. A drizzle of balsamic glaze can also be a crowd pleaser!

How one can Retailer and Reheat Leftovers
As soon as your onion tart has cooled, then you possibly can place it in an hermetic container and put it in your fridge. It’ll final 4-5 days. I like to recommend reheating it within the oven at 375 levels Fahrenheit for about 15-20 minutes or till it’s heated via.

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Warmth oil in a big deep pan on medium-high warmth. Add onions and cook dinner for about 10 minutes or till softened and wilted.
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Add the salt and brown sugar and cook dinner uncovered for an extra 20 minutes till the onions are caramelized. Put aside and permit to chill whilst you put together the tart. Make certain your onions are cooled sufficient earlier than you set them on the chilly tart.
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Preheat the oven to 400° Fahrenheit.
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Rigorously unroll every pastry tart. Place them barely overlapping on a baking sheet lined with parchment paper. Flippantly press the 2 tarts creating one giant rectangular-sized tart. Fold up the perimeters round the entire tart to create a fairly completed edge. Prick with a fork each inch or so to assist forestall effervescent whereas baking.
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Sprinkle the cheese evenly on the tart.
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Evenly lay the onions on high of the pastry.
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Utilizing a pastry brush, brush the folded edges of the pastry with heavy cream to create that golden brown edge. Sprinkle on the thyme leaves.
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Bake for 18-20 minutes or till cheese has melted and pastry is crisp. Cool for five minutes earlier than chopping into squares or triangles. Garnish with further thyme leaves if desired.
Serves: 6
Energy627kcal (31%)Carbohydrates48g (16%)Protein14g (28%)Fats42g (65%)Saturated Fats14g (70%)Polyunsaturated Fats5gMonounsaturated Fats22gLdl cholesterol30mg (10%)Sodium560mg (23%)Potassium234mg (7%)Fiber3g (12%)Sugar7g (8%)Vitamin A317IU (6%)Vitamin C9mg (11%)Calcium262mg (26%)Iron2mg (11%)
All dietary data relies on third celebration calculations and is simply an estimate. Every recipe and dietary worth will fluctuate relying on the manufacturers you employ, measuring strategies and portion sizes per family.
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