French Onion Tart Recipe
A buttery, flaky tart shell filled with caramelized onions, cream, eggs, and herbs. Savory, elegant, and perfect for brunch or a cozy lunch.
- Prep Time: 20 minutes
- Cook Time: 1 hour
- Total Time: 1 hour 20 minutes
- Yield: 1 9-inch tart 1x
- Category: Appetizer
- Method: Baking
- Cuisine: French
- Diet: Vegetarian
Ingredients
Scale
Pie Crust:
- 1 9-inch pie crust
Caramelized Onions:
- 2 tbsp butter
- 3 medium yellow onions, thinly sliced
- 1 tsp thyme
- Salt & pepper to taste
Custard:
- 3/4 cup heavy cream
- 2 eggs
- 1/2 cup grated gruyère or Swiss cheese
- Pinch of nutmeg
Instructions
- Preheat oven to 375°F (190°C). Roll out and press crust into tart pan. Prick base with fork and prebake for 10 minutes.
- Meanwhile, sauté onions in butter with thyme, salt, and pepper until deeply golden (20–25 mins).
- In a bowl, whisk cream, eggs, cheese, nutmeg, and season to taste.
- Spread caramelized onions into crust. Pour custard over.
- Bake 30–35 mins until set and golden. Cool slightly before serving.
Nutrition
- Serving Size: 1 slice
- Calories: 320
- Sugar: 3g
- Sodium: 380mg
- Fat: 24g
- Saturated Fat: 14g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 20g
- Fiber: 1g
- Protein: 8g
- Cholesterol: 120mg
Keywords: French Onion Tart, Onion Tart Recipe, Savory Tart
Find it online: https://mbeams.com/french-onion-tart-recipe/