This Easy French Onion Mushroom Tart is a savory, French-inspired dish layered with caramelized onions, sautéed mushrooms, and creamy Gruyere cheese on a flaky puff pastry base. It’s a delightful option for a vegetarian dinner or an impressive appetizer.
The recipe features key elements like caramelized onions, Gruyere cheese, and puff pastry, making it a standout choice among savory tart and mushroom tart recipes.
Overview of the French Onion Mushroom Tart
The French Onion Mushroom Tart is a delightful dish that brings together the rich flavors of caramelized onions and sautéed mushrooms, all enveloped in a flaky puff pastry crust.
This savory tart is not only visually appealing but also offers a satisfying taste experience, making it an excellent choice for a vegetarian dinner or an impressive appetizer at gatherings.
With its layers of melted Gruyere cheese, this tart embodies the essence of French-inspired cuisine, showcasing a perfect balance of sweetness and earthiness.
Ingredients That Shine
The key ingredients in this recipe include sweet onions, which are slowly caramelized to enhance their natural sweetness, and mushrooms that add depth and texture.
Gruyere cheese, known for its creamy and nutty flavor, melts beautifully over the tart, creating a luscious topping that complements the other ingredients perfectly.
Using a sheet of puff pastry as the base not only simplifies the preparation process but also contributes to the tart’s delightful flakiness, making it a standout among puff pastry recipes.
Preparation Steps
To create this savory tart, start by preheating your oven to 400°F (200°C).
Next, caramelize the onions in a skillet with butter, allowing them to cook slowly until they turn golden brown and sweet.
Once the onions are ready, add the sliced mushrooms and cook until they are tender, stirring in black pepper and fresh thyme for added flavor.
Assembling the Tart
After preparing the filling, roll out the puff pastry on a floured surface to fit your tart pan.
Place the pastry in the pan, trim any excess, and then spread the caramelized onion and mushroom mixture evenly over the base.
Top it off with a generous layer of shredded Gruyere cheese, ensuring every bite is packed with flavor.
Baking to Perfection
Brush the edges of the pastry with a beaten egg to achieve a beautiful golden color during baking.
Place the tart in the preheated oven and bake for 25-30 minutes, watching for the pastry to puff and turn a lovely golden brown.
Once baked, allow the tart to cool slightly before slicing, revealing the delicious layers of caramelized onions, mushrooms, and melted cheese.
Serving Suggestions
This French Onion Mushroom Tart can be served warm as a main dish or cut into smaller pieces for a delightful appetizer.
Pair it with a small bowl of mixed greens for a refreshing contrast to the rich flavors of the tart.
This dish not only satisfies the palate but also makes for an impressive presentation on any dining table.
Simple and Delicious French Onion Mushroom Tart
This tart combines the sweetness of caramelized onions with the earthiness of mushrooms and the richness of Gruyere cheese. The preparation takes about 45 minutes and serves 6 people, making it a perfect dish for gatherings or a cozy dinner at home.
Ingredients
- 1 sheet of puff pastry, thawed
- 2 large sweet onions, thinly sliced
- 8 oz mushrooms, sliced
- 2 tablespoons butter
- 1 cup shredded Gruyere cheese
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1 tablespoon fresh thyme leaves (optional)
- 1 egg, beaten (for egg wash)
Instructions
- Preheat Oven: Preheat your oven to 400°F (200°C).
- Caramelize Onions: In a large skillet, melt the butter over medium heat. Add the sliced onions and salt, cooking slowly until they are golden and caramelized, about 20-25 minutes.
- Sauté Mushrooms: Add the sliced mushrooms to the skillet and cook for an additional 5-7 minutes until they are tender and any liquid has evaporated. Stir in black pepper and thyme if using.
- Prepare Puff Pastry: Roll out the puff pastry on a lightly floured surface to fit your tart pan. Place the pastry in the pan and trim any excess.
- Assemble Tart: Spread the caramelized onion and mushroom mixture evenly over the pastry. Top with shredded Gruyere cheese.
- Bake: Brush the edges of the pastry with the beaten egg. Bake in the preheated oven for 25-30 minutes, or until the pastry is golden brown and puffed.
- Serve: Allow to cool slightly before slicing. Serve warm as a main dish or appetizer.
Cook and Prep Times
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 45 minutes
Nutrition Information
- Servings: 6 slices
- Calories: 320kcal
- Fat: 22g
- Protein: 8g
- Carbohydrates: 24g