Name: French Mushroom & Shallot Tart
Prep time: 25 min
Cook time: 50 min
Total time: 1 h 30 min
Yield: 8
Cuisine: French
Ingredients: 1 9–10 inch tart crust (shortcrust or puff pastry); 1.5 lbs mixed mushrooms, sliced; 4–5 large shallots, thinly sliced; 3 tbsp unsalted butter; 2 tbsp olive oil; 3 garlic cloves, minced; 1 tbsp fresh thyme leaves; 2 large eggs; ½ cup heavy cream; ½ cup shredded Gruyère or Parmesan; Salt and freshly ground black pepper

This elegant French Mushroom & Shallot Tart features a buttery crisp crust filled with sweet caramelized shallots, golden sautéed mushrooms, fresh thyme, and a light, creamy custard.

Classic French bistro flavors come together in this sophisticated yet comforting open-faced tart — perfect for brunch, lunch, or a refined light dinner.

Why You’ll Love This Recipe

This French Mushroom & Shallot Tart brings authentic Parisian bistro charm right into your kitchen. The natural sweetness of slowly caramelized shallots pairs beautifully with earthy mushrooms and aromatic thyme, all nestled in a flaky crust with a delicate creamy filling.

It strikes the perfect balance between rustic and refined. Impressive enough for guests yet simple enough for weekend baking, this tart tastes even better as the flavors settle. One bite and you’ll feel transported to a cozy French café.

Yield: 8 servings

French Mushroom & Shallot Tart

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Elegant French tart with caramelized shallots, sautéed mushrooms, and herbs in a flaky crust.

Prep Time 25 minutes

Cook Time 50 minutes

Additional Time 15 minutes

Total Time 1 hour 30 minutes

Ingredients

1 9–10 inch tart crust (shortcrust or puff pastry)
1.5 lbs mixed mushrooms, sliced
4–5 large shallots, thinly sliced
3 tbsp unsalted butter
2 tbsp olive oil
3 garlic cloves, minced
1 tbsp fresh thyme leaves
2 large eggs
½ cup heavy cream
½ cup shredded Gruyère or Parmesan
Salt and freshly ground black pepper

Instructions

Prepare the crust: Preheat oven to 375°F (190°C). Fit crust into tart pan, prick the base, and blind bake for 12–15 minutes until lightly golden.
Caramelize shallots: In a large skillet, heat 2 tablespoons butter and 1 tablespoon oil over medium heat. Add sliced shallots and cook slowly until soft and golden, about 10–12 minutes.
Sauté mushrooms: Increase heat to medium-high. Add remaining butter and oil along with mushrooms. Cook in batches until beautifully golden brown.
Build flavor: Stir in minced garlic and fresh thyme during the last minute. Season well with salt and pepper. Remove from heat and let cool slightly.
Mix filling: Combine caramelized shallots and sautéed mushrooms in a bowl. Taste and adjust seasoning.
Make custard: In a separate bowl, whisk eggs, heavy cream, half the cheese, salt, and pepper until smooth.
Assemble tart: Spread mushroom-shallot mixture evenly over the pre-baked crust. Pour custard mixture gently over the top.
Add cheese: Sprinkle remaining cheese evenly across the surface for a lovely golden top.
Bake: Place tart on a baking sheet and bake for 30–35 minutes until the filling is set and the top is beautifully golden.
Rest and serve: Remove from oven and allow to cool for 10–15 minutes. Slice and serve warm or at room temperature.

Notes

This tart pairs wonderfully with a crisp green salad and a glass of chilled white wine or light red. It is equally delicious served warm for brunch or at room temperature for picnics.

Nutrition Information

Yield

Serving Size

1
Amount Per Serving Calories 287Total Fat 22gSaturated Fat 12gUnsaturated Fat 11gCholesterol 98mgSodium 154mgCarbohydrates 14gFiber 2gSugar 7gProtein 9g

The recipes and nutritional information on Yum Tonight are for informational purposes only. Always consult a healthcare provider for personalized dietary advice.

Recipe Tips and Tricks

Caramelize shallots slowly for maximum sweetness and depth.
Brown mushrooms well in batches — this is key for rich flavor.
Blind bake the crust to keep it crisp under the filling.
Use room-temperature eggs and cream for a smoother custard.
Fresh thyme works best; add it during cooking for best aroma.
Let the tart rest 10–15 minutes before slicing for clean cuts.
A light sprinkle of cheese on top creates a beautiful golden finish.

Ingredients Notes

Crust: Buttery French-style shortcrust or quality puff pastry provides the classic crisp, flaky base.
Shallots: Sweet and mild French shallots caramelize beautifully and form the aromatic foundation.
Mushrooms: Cremini, button, or a mix with oyster mushrooms deliver deep earthy flavor and meaty texture.
Custard: Eggs and cream create a light, silky binding that highlights rather than overwhelms the mushrooms.
Herbs: Fresh thyme is essential for that signature French Provençal note.
Cheese: A touch of Gruyère or Parmesan adds nutty richness without heaviness.

Variations and Substitutions

Add spinach or leeks for extra greens. For a richer version, incorporate goat cheese or crumbled blue cheese. Make it meaty with crispy bacon or pancetta. Use puff pastry for a quicker, flakier crust.

For a gluten-free option, choose a gluten-free tart crust. Add a splash of white wine while cooking the mushrooms for brighter flavor. Individual mini tarts make elegant appetizers. In season, wild mushrooms like chanterelles create a luxurious upgrade.

Storage Options

Refrigerate leftovers in an airtight container for up to 4 days. Reheat in a 350°F oven for 10–15 minutes to restore crispness. The baked tart freezes well for up to 2 months. Thaw overnight in the refrigerator before reheating.