Caramelized Onion Tart with Gorgonzola and Brie Recipe
This Caramelized Onion Tart with Gorgonzola and Brie is a savory and elegant appetizer or light meal featuring sweet, rich caramelized onions, creamy brie, pungent gorgonzola, and fresh tarragon all baked atop a crisp puff pastry crust. Its balanced flavors and flaky texture make it perfect for entertaining or a sophisticated snack.
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Total Time: 50 minutes
- Yield: 6 servings 1x
- Category: Appetizer
- Method: Baking
- Cuisine: French
Ingredients
Scale
For the Caramelized Onions
- 2 tablespoons extra virgin olive oil
- 4 cups onions, sliced root-to-top into 1/4-inch thick slices (about 2 to 3 medium onions)
- 1 tablespoon brown sugar
- 2 tablespoons balsamic vinegar
- 1/2 teaspoon salt
- 1/2 teaspoon pepper
For the Tart
- 8 ounces (1 sheet) frozen puff pastry, defrosted for a couple hours in the fridge
- 2 ounces chilled brie cheese, rind removed and diced
- 2 ounces gorgonzola or other blue cheese, diced
- 2 tablespoons chopped fresh tarragon
Instructions
- Caramelize the Onions: Heat olive oil in a large deep pan over medium-high heat. Add the sliced onions and cook for about 10 minutes until they begin to wilt and brown. Stir in the brown sugar, balsamic vinegar, salt, and pepper. Reduce the heat to low and cook uncovered for another 20 to 25 minutes, stirring occasionally, until the onions are richly caramelized. Add a little water if the onions begin to dry out. Remove from heat and allow to cool.
- Preheat the Oven: Set your oven to 400°F (200°C) to prepare for baking the tart.
- Prepare the Puff Pastry: Roll out the defrosted puff pastry into a 10-to-14-inch rectangle or desired shape. Place it on a baking sheet lined with parchment paper. Prick the pastry with a fork at two-inch intervals to prevent large air bubbles during baking.
- Assemble the Tart: Evenly spread the caramelized onions over the entire surface of the pastry, reaching all the way to the edges. Dot the tart with diced brie and gorgonzola cheeses, then sprinkle the chopped fresh tarragon over the top. Refrigerate if not baking immediately.
- Bake the Tart: Place the tart in the preheated oven and bake for 18 to 20 minutes, or until the cheese has melted and the pastry is golden and crispy. Remove from the oven and cool for 5 minutes before cutting into wedges or squares. Serve warm and enjoy!
Notes
- If the onions start to stick during caramelization, add a few tablespoons of water to loosen them without burning.
- Use good quality puff pastry for the best flaky texture.
- Feel free to substitute fresh herbs like thyme or rosemary if tarragon is unavailable.
- This tart can be served warm or at room temperature, making it great for parties.
- To make ahead, assemble the tart and refrigerate before baking; bake just before serving.
Keywords: caramelized onion tart, gorgonzola tart, brie tart, puff pastry tart, savory tart, appetizer, easy tart recipe
