Description
A delightful combination of sweet caramelized onions and creamy cheeses encased in a flaky crust, perfect for any occasion.
Ingredients
Scale
- 3 large yellow onions
- 2 tablespoons olive oil
- 1 tablespoon unsalted butter
- 1 teaspoon granulated sugar
- 1/2 teaspoon balsamic vinegar
- 1/2 teaspoon dried thyme (or 1 teaspoon fresh)
- Salt and pepper to taste
- 8 ounces softened cream cheese
- 4 ounces grated Gruyère cheese
- 2 ounces grated Parmesan cheese
- 1 large egg
- 1/4 cup heavy cream or crème fraîche
- Pinch of nutmeg (optional)
- 1 box (14.1 ounces) refrigerated pie crusts
- Fresh thyme sprigs for garnish
- Balsamic glaze for drizzling
Instructions
- Caramelize the onions: Heat olive oil and butter in a skillet over medium heat. Add sliced onions, season with salt and sugar, and cook slowly, stirring frequently until golden brown (about 30-40 minutes). Stir in balsamic vinegar and thyme; set aside to cool slightly.
- Prepare the filling: In a mixing bowl, beat the cream cheese until smooth. Add in Gruyère, Parmesan, egg, heavy cream, and nutmeg. Combine thoroughly.
- Assemble the tarts: Preheat your oven to 375°F (190°C). Roll out the pie crusts and fit them into your tart pans. Fill with the cheese mixture, and then layer the caramelized onions on top.
- Bake: Transfer tarts to the oven and bake for 30 minutes, or until the filling is set and the crust is golden.
- Cool and garnish: Allow the tarts to cool slightly, garnish with fresh thyme sprigs, and drizzle with balsamic glaze.
Notes
For a unique twist, try adding spinach, leeks, or experiment with different cheeses.
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Category: Appetizer
- Method: Baking
- Cuisine: French
Nutrition
- Serving Size: 1 tart
- Calories: 280
- Sugar: 4g
- Sodium: 350mg
- Fat: 17g
- Saturated Fat: 9g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 25g
- Fiber: 1g
- Protein: 6g
- Cholesterol: 40mg
Keywords: caramelized onion, cheese tarts, savory tart