Description
Indulge in the flavors of our French Onion Mushroom Tart, a beautifully layered dish that combines the sweetness of caramelized onions with the earthiness of sautéed mushrooms, all atop a flaky puff pastry crust. This versatile tart is perfect for any occasion, whether as a stunning appetizer or a satisfying main course. It’s easy to prepare, making it ideal for both novice and experienced cooks. With its rich flavors and elegant presentation, this dish is sure to impress your guests and elevate your dining experience.
Ingredients
Scale
- 1 sheet puff pastry, thawed
- 2 large onions, thinly sliced
- 1 1/2 cups mushrooms (cremini, shiitake, or button), sliced
- 2 tablespoons unsalted butter
- 1 tablespoon olive oil
- 1 teaspoon sugar
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
- 1/2 cup Gruyère cheese, grated
- 1/4 cup Parmesan cheese, grated
- 1 egg, beaten (for egg wash)
Instructions
- Caramelize the onions by cooking them with butter and olive oil over medium-low heat for about 30 minutes until golden brown. Add sugar, salt, and pepper halfway through.
- In the same skillet, sauté sliced mushrooms over medium heat until golden brown and dry (about 10 minutes). Set aside.
- Preheat oven to 400°F (200°C). Roll out puff pastry on a floured surface into a rectangle and place it on a parchment-lined baking sheet. Score a border around the edges.
- Spread caramelized onions within the scored area of the pastry, layer with sautéed mushrooms, and top with Gruyère and Parmesan cheese. Brush edges with beaten egg.
- Bake for 20-25 minutes until golden brown and bubbly. Allow to cool slightly before serving.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Appetizer/Main
- Method: Baking
- Cuisine: French
Nutrition
- Serving Size: 1 slice (approximately 125g)
- Calories: 275
- Sugar: 4g
- Sodium: 460mg
- Fat: 18g
- Saturated Fat: 10g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 24g
- Fiber: 2g
- Protein: 7g
- Cholesterol: 70mg