Description
Indulge in the rich flavors of this Caramelized Onion Tart, featuring sweet caramelized onions on flaky puff pastry, topped with Gruyère cheese. A delightful French-inspired appetizer that’s perfect for any occasion.
Ingredients
Puff Pastry:
1 sheet puff pastry (thawed)
Caramelized Onions:
2 tablespoons olive oil, 2 large yellow onions (thinly sliced), 1 teaspoon sugar, 1/2 teaspoon salt, 1/4 teaspoon black pepper, 1/2 teaspoon fresh thyme leaves (or 1/4 teaspoon dried)
Topping:
1/2 cup shredded Gruyère cheese (or Swiss cheese), 1 egg (beaten, for egg wash), 1 tablespoon chopped fresh parsley (optional)
Instructions
- Preheat the oven: Preheat the oven to 400°F (200°C). Line a baking sheet with parchment paper.
- Caramelize the onions: In a skillet, cook onions, sugar, salt, and pepper until golden brown. Stir in thyme.
- Prepare the pastry: Roll out puff pastry on the baking sheet. Score a border, brush with egg wash.
- Assemble: Spread caramelized onions on pastry, sprinkle with cheese.
- Bake: Bake for 20–25 minutes until golden. Let cool, then garnish with parsley.
Notes
- This tart is delicious served warm or at room temperature.
- Try adding sautéed mushrooms or goat cheese for a flavorful twist.
- Store leftovers in the fridge and reheat in the oven for best results.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Appetizer
- Method: Baking
- Cuisine: French-Inspired
Nutrition
- Serving Size: 1 slice
- Calories: 260
- Sugar: 4g
- Sodium: 270mg
- Fat: 17g
- Saturated Fat: 6g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 22g
- Fiber: 1g
- Protein: 5g
- Cholesterol: 25mg
