Description
Indulge in the delightful flavors of the Golden Caramelized Onion & Gruyère Puff Pastry Tart. This elegant dish showcases the sweet richness of caramelized onions paired with creamy Gruyère cheese, all enveloped in a flaky puff pastry shell. Perfect for any gathering or special occasion.
Ingredients
Scale
- 1 sheet puff pastry
- 3 large yellow onions
- 2 tablespoons butter
- 1 tablespoon olive oil
- 1 cup shredded Gruyère cheese
- ¼ cup heavy cream
- 1 egg
- ½ teaspoon black pepper
- 1 teaspoon sugar
- Salt to taste
- 1 teaspoon fresh thyme leaves
Instructions
- In a skillet, melt butter and olive oil over medium heat. Add sliced onions, sugar, and salt; cook for 25–30 minutes until golden brown.
- Preheat your oven to 400°F (200°C).
- Prepare the puff pastry on a parchment-lined baking sheet, scoring a border around the edges and pricking the inner section with a fork.
- Bake for 10 minutes until lightly golden.
- Whisk together heavy cream, egg, pepper, and Gruyère cheese in a bowl.
- Spread Dijon mustard (if using) on the pre-baked pastry, pour in the cheese mixture, and top with caramelized onions.
- Bake for an additional 15–18 minutes until puffed and golden brown.
- Prep Time: 20 minutes
- Cook Time: 45 minutes
- Category: Appetizer
- Method: Baking
- Cuisine: French
Nutrition
- Serving Size: 1 slice (100g)
- Calories: 320
- Sugar: 5g
- Sodium: 450mg
- Fat: 22g
- Saturated Fat: 9g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 24g
- Fiber: 1g
- Protein: 8g
- Cholesterol: 80mg