Savory French Onion Mushroom Tart That Stuns Every Guest

This French Onion Mushroom Tart combines earthy mushrooms and sweet caramelized onions, all encased in a flaky pastry. A crowd-pleaser that's easy to prepare.

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Prep Time 30

Cook Time 25

Cooling Time 5

Total Time 1

Servings: 8 slices

Course: Appetizers

Cuisine: French

Calories: 300

Ingredients Equipment Method Nutrition Notes

Ingredients

For the Pastry

1 sheet Puff Pastry Store-bought

For the Filling

2 cups Sliced Mushrooms e.g., cremini
2 tablespoons Butter For caramelizing onions
2 large Onions Sliced; yellow or sweet preferred
1/4 cup Sherry Can substitute with white wine
1/2 cup Beef Stock Or vegetable stock for vegetarian
2 cloves Garlic Minced
1 teaspoon Fresh Thyme Dried thyme can also be used
1 cup Gruyere Cheese Grated; Swiss or Monterey Jack can substitute

Equipment

large skillet
baking sheet
Oven

Method

Step-by-Step Instructions for French Onion Mushroom Tart

Melt butter in a large skillet and caramelize onions slowly for 20-30 minutes.
Add sherry and beef stock to the onions, cooking until the liquid evaporates and the mixture thickens.
In the same skillet, sauté mushrooms and minced garlic for 5-7 minutes until tender.
Preheat oven to 400°F (200°C) and prepare puff pastry.
Spread caramelized onions on pastry, layer sautéed mushrooms, and top with Gruyere cheese.
Bake for 20-25 minutes until golden brown and cheese is melted.
Let cool for a few minutes, slice, and serve warm.

Nutrition

Serving: 1sliceCalories: 300kcalCarbohydrates: 25gProtein: 8gFat: 20gSaturated Fat: 10gPolyunsaturated Fat: 1gMonounsaturated Fat: 5gCholesterol: 30mgSodium: 500mgPotassium: 300mgFiber: 2gSugar: 4gVitamin A: 10IUVitamin C: 15mgCalcium: 20mgIron: 10mg

Notes

Store leftovers in an airtight container for up to 3 days. Can be frozen for up to 3 months. Reheat in a preheated oven for best results.

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