Irresistible Caramelized Onion Tart Recipe in 30 Minutes
A savory tart featuring caramelized onions atop a crisp pastry crust.
- Prep Time: 15 mins
- Cook Time: 40 mins
- Total Time: 55 mins
- Yield: 6 servings 1x
- Category: Appetizer
- Method: Baking
- Cuisine: French
- Diet: Vegetarian
Ingredients
Scale
- 1 sheet puff pastry, thawed
- 2 large onions, thinly sliced
- 2 tbsp butter
- 1 tbsp olive oil
- 1 tsp sugar
- 1 tsp salt
- 1/2 tsp black pepper
- 1/2 cup grated Gruyère cheese
- 1 egg, beaten
Instructions
- Preheat oven to 375°F.
- Roll puff pastry into a rectangle and place on baking sheet.
- Sauté onions in butter and oil until golden brown.
- Sprinkle sugar, salt, and pepper over onions.
- Spread caramelized onions evenly over pastry.
- Top with grated cheese.
- Brush edges with beaten egg.
- Bake for 25-30 minutes until golden.
Notes
- Use sweet onions for deeper flavor.
- Chill pastry before baking for flakier results.
Nutrition
- Serving Size: 1 slice
- Calories: 320
- Sugar: 4g
- Sodium: 380mg
- Fat: 22g
- Saturated Fat: 8g
- Unsaturated Fat: 12g
- Trans Fat: 0g
- Carbohydrates: 24g
- Fiber: 2g
- Protein: 6g
- Cholesterol: 45mg