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baked brie wrapped in puff pastry next to crackers on a black plate.

Baked Brie with Caramelized Onions in Puff Pastry

Party appetizers do not come much finer than this Baked Brie with Caramelized Onions in Puff Pastry. Featuring melted double cream brie, herb-infused caramelized onions, and puff pastry, it’s a rich and savory treat that everyone at the party will want to devour.
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Course: Appetizer
Cuisine: French
Keyword: baked brie, cocktail party, holiday
Prep Time: 30 minutes
Cook Time: 45 minutes
Rest Time: 10 minutes
Makes: 6 servings

Equipment

  • baking sheet
  • parchment paper
  • pastry brush

Ingredients

  • 1 tablespoon unsalted butter
  • 1 tablespoon olive oil
  • 3 cups chopped brown onion about 1 large onion
  • ¾ teaspoon salt
  • 1 clove garlic finely chopped
  • ½ teaspoon fresh thyme leaves
  • Pinch black pepper
  • 8 ounce wheel of double cream brie
  • 1 sheet puff pastry thawed
  • 1 large egg

Instructions

  • Melt butter and olive oil in a large skillet over medium heat.
  • Add the onions and evenly sprinkle with salt. Cook over medium heat, stirring occasionally, until deep brown and caramelized about 45 minutes.
  • At about 25 minutes into cooking, the onions will begin to stick and leave browned bits in the bottom of the pan. A few tablespoons at a time, deglaze the pan with water, scraping the browned bits from the pan, and repeat as needed.
  • Once the onions are caramelized, remove from heat and stir in thyme, garlic, and black pepper. Cool for 10 minutes.
  • Preheat oven to 400 degrees and line a baking sheet with parchment.
  • Unroll the sheet of puff pastry on a lightly floured surface and roll to a 10-inch square.
  • Place puff pastry on a parchment lined baking sheet. Place the wheel of brie into the center of the pastry dough and top with caramelized onions.
  • Whisk egg with 1 tablespoon of water in a small bowl.
  • Fold the dough edges up and around the brie and onions, brushing with the egg wash between any part of the dough folded on top of itself.
  • Once the dough is folded around the brie, brush all over with the egg wash. Discard any excess.
  • Bake until the puff pastry is evenly browned, about 45 minutes.
  • Allow to cool for 10 minutes, transer to a serving platter and serve with additional crackers.
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