Growing up, I have so many cherished memories of my grandma’s French Onion and Mushroom Tart with Gruyere Cheese. The way the buttery crust would crumble in my mouth, the rich, caramelized onions, and the gooey, melted cheese – it was pure comfort food heaven. Whenever she made it, the entire house would be filled with the most amazing aroma, and my siblings and I would come running to the kitchen, eagerly awaiting our slices.

Grandma always made enough for the whole family, and this recipe is still one that we turn to again and again. This French Onion and Mushroom Tart with Gruyere Cheese yields 6 servings, with each serving being a delectable slice. It’s the perfect dish to gather around the table with loved ones, and I’m excited to share Grandma’s secret with you.

Why This French Onion and Mushroom Tart with Gruyere Cheese Recipe Will Become Your Go-To

The Secret Behind Perfect French Onion and Mushroom Tart with Gruyere Cheese

What sets this French Onion and Mushroom Tart with Gruyere Cheese apart is the perfect balance of flavors and textures. The key is slowly caramelizing the onions to bring out their natural sweetness, which pairs beautifully with the earthy mushrooms and the nutty, melted Gruyere cheese. And the flaky, buttery crust – oh, it’s simply divine. This recipe makes 6 servings, and I guarantee you’ll be coming back for seconds (and thirds!).

Essential Ingredients You’ll Need

To make this delectable French Onion and Mushroom Tart with Gruyere Cheese, you’ll need:

  • Pie crust – either homemade or store-bought
  • Olive oil
  • Yellow onions, thinly sliced
  • Cremini mushrooms, sliced
  • Garlic, minced
  • Thyme, fresh or dried
  • Salt and pepper
  • Gruyere cheese, grated

These ingredients come together to create the 6 servings of this irresistible tart.

Step-by-Step French Onion and Mushroom Tart with Gruyere Cheese Instructions

Preparing Your French Onion and Mushroom Tart with Gruyere Cheese

This recipe takes 75 minutes total – 30 minutes for prep and 45 minutes for cooking. You’ll need a pie dish, a sauté pan, and a few other basic kitchen tools. Let’s get started!

1- Preheat your oven to 375°F. Roll out the pie crust and press it into a 9-inch pie dish, crimping the edges to create a decorative border. Prick the bottom of the crust with a fork and bake for 10 minutes. Remove from the oven and set aside.

2- In a large sauté pan, heat 2 tablespoons of olive oil over medium heat. Add the sliced onions and sauté for 20-25 minutes, stirring occasionally, until they’re caramelized and golden brown.

3- Add the sliced mushrooms and minced garlic to the pan and continue cooking for another 5 minutes, until the mushrooms are tender. Season the mixture with 1 teaspoon of thyme, salt, and pepper.

4- Spread the caramelized onion and mushroom mixture evenly into the pre-baked pie crust. Top with the grated Gruyere cheese, making sure to cover the entire surface.

5- Bake the tart for 30 minutes, or until the cheese is melted and bubbly.

6- Remove the tart from the oven and let it cool for 5 minutes before slicing and serving. Enjoy your 6 delicious slices of French Onion and Mushroom Tart with Gruyere Cheese!

Pro Tips for Success

  • For an extra crispy crust, consider blind-baking the pie crust for 15 minutes before adding the filling.
  • Don’t rush the onion caramelization process – low and slow is the key to achieving that perfect, sweet flavor.
  • Freshly grated Gruyere cheese will melt better than pre-shredded.
  • Keep an eye on the tart during the final baking to prevent the cheese from burning.

Serving and Storing Your French Onion and Mushroom Tart with Gruyere Cheese

Perfect Pairings for French Onion and Mushroom Tart with Gruyere Cheese

This French Onion and Mushroom Tart with Gruyere Cheese is the ultimate comfort food. It’s perfect for a cozy family dinner, a potluck gathering, or even a special occasion. Each of the 6 servings is a generous slice that pairs beautifully with a fresh green salad and a glass of crisp white wine.

Storage and Make-Ahead Tips

Leftover French Onion and Mushroom Tart with Gruyere Cheese can be stored in the refrigerator for up to 4 days. Reheat individual slices in the oven or microwave until hot and melty. You can also make the tart ahead of time and bake it right before serving. It’s a great dish to prepare in advance for busy weeknights or easy entertaining.

Variations and Dietary Adaptations for French Onion and Mushroom Tart with Gruyere Cheese

Creative French Onion and Mushroom Tart with Gruyere Cheese Variations

If you’re feeling adventurous, try adding diced bacon or caramelized shallots to the filling for an extra layer of flavor. You could also experiment with different cheese blends, such as a mix of Gruyere and Swiss, or even a sprinkle of Parmesan on top. And for a seasonal twist, consider swapping the mushrooms for roasted butternut squash or caramelized onions.

Making French Onion and Mushroom Tart with Gruyere Cheese Diet-Friendly

To make this tart gluten-free, simply use a gluten-free pie crust or make your own. For a dairy-free version, replace the Gruyere cheese with a vegan cheese alternative. And for a low-carb option, you can make individual tarts using a cheese or almond flour crust.

Frequently Asked Questions

Q: Can I use a different type of mushroom in this recipe?
A: Absolutely! While cremini mushrooms work wonderfully, you can also use button mushrooms, shiitake, or even a mix of different varieties. Just make sure to adjust the cooking time accordingly.

Q: How many servings does this recipe make?
A: This recipe makes exactly 6 servings, with each serving being 1 slice.

Q: Can I make the tart ahead of time?
A: Yes, you can! The tart can be prepared and baked up to 3 days in advance. Simply reheat individual slices in the oven or microwave when ready to serve.

Q: What if my crust is too brown or the cheese is burning?
A: If the crust is browning too quickly, you can cover the edges with foil or a pie crust shield to prevent further browning. If the cheese is burning, simply cover the tart with foil for the remaining baking time.

Q: Can I freeze this tart?
A: Yes, you can! Baked and cooled tart can be wrapped in plastic wrap and aluminum foil and frozen for up to 2 months. Thaw in the refrigerator overnight before reheating.

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French Onion and Mushroom Tart with Gruyere Cheese

French Onion and Mushroom Tart with Gruyere Cheese


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  • Author: Sofia Bennett
  • Total Time: 75
  • Yield: 6 servings

Description

Indulge in the rich, savory flavors of this classic French Onion and Mushroom Tart, featuring a flaky pastry crust, caramelized onions, sautéed mushrooms, and melted gruyere cheese. This irresistible dish is perfect for any occasion, from a cozy dinner at home to a special gathering with friends and family.


Ingredients

– 1 sheet of puff pastry, thawed

– 2 tablespoons olive oil

– 4 large onions, thinly sliced

– 8 ounces cremini mushrooms, sliced

– 2 cloves garlic, minced

– 1 teaspoon fresh thyme, chopped

– Salt and pepper to taste

– 1 cup shredded gruyere cheese


Instructions

1. 1. Preheat your oven to 400°F (200°C).

2. 2. In a large skillet, heat the olive oil over medium-low heat. Add the sliced onions and cook, stirring occasionally, until they are caramelized and golden brown, about 25-30 minutes.

3. 3. Add the sliced mushrooms and garlic to the skillet and sauté for 5-7 minutes, until the mushrooms are tender.

4. 4. Season the onion-mushroom mixture with salt, pepper, and fresh thyme.

5. 5. Unfold the puff pastry sheet and place it in a 9-inch tart pan with a removable bottom, pressing it into the sides and trimming any excess.

6. 6. Spread the caramelized onion and mushroom mixture evenly over the puff pastry.

7. 7. Sprinkle the shredded gruyere cheese over the top.

8. 8. Bake the tart in the preheated oven for 20-25 minutes, or until the pastry is golden brown and the cheese is melted and bubbly.

9. 9. Allow the tart to cool for 5-10 minutes before slicing and serving.

Notes

For a richer flavor, you can caramelize the onions in a mixture of butter and olive oil. You can also experiment with different types of mushrooms, such as shiitake or oyster, to add more depth of flavor. This tart can be served warm or at room temperature, making it a versatile and easy-to-prepare dish.

  • Prep Time: 30
  • Cook Time: 45
  • Category: Comfort Food
  • Method: Baking
  • Cuisine: French

Conclusion

This French Onion and Mushroom Tart with Gruyere Cheese is a true family favorite, and I hope it becomes a go-to in your kitchen as well. The flavors are simply out of this world, and with 6 generous servings, it’s the perfect dish to share with loved ones. So, what are you waiting for? Grab your ingredients, fire up the oven, and get ready to enjoy a slice of comfort food heaven!