French Onion Tart

Ingredients

• 1 sheet of puff pastry (320g) 1 sheet of puff pastry (320g)
• 4 large onions, thinly sliced 4 large onions, thinly sliced
• 2 tablespoons butter (28g) 2 tablespoons butter (28g)
• 1 tablespoon olive oil (15ml) 1 tablespoon olive oil (15ml)
• 1 teaspoon fresh thyme leaves 1 teaspoon fresh thyme leaves
• 1 cup (100g) Gruyère or Emmental cheese, grated 1 cup (100g) Gruyère or Emmental cheese, grated
• Salt and pepper to taste Salt and pepper to taste

Nutrition

• Calories (kcal / KJ): 380 kcal / 1590 KJ
• Fat (total, saturated): 24g, 12g
• Carbohydrates (total, sugars): 34g, 6g
• Protein: 8g
• Fiber: 3g
• Salt: 0.8g

Preparation

1. 1.
   Preheat the oven to 200°C (400°F).
2. 2.
   In a large skillet, melt the butter and olive oil over medium heat.
3. 3.
   Add the sliced onions and cook until they become soft and translucent, stirring occasionally.
4. 4.
   Reduce the heat to low and continue cooking the onions for about 30 minutes, stirring occasionally, until they caramelize and turn golden brown.
5. 5.
   Stir in the fresh thyme leaves and season with salt and pepper.
6. 6.
   Roll out the puff pastry sheet and place it on a baking sheet lined with parchment paper.
7. 7.
   Spread the caramelized onions evenly over the puff pastry, leaving a small border around the edges.
8. 8.
   Sprinkle the grated cheese over the onions.
9. 9.
   Bake in the preheated oven for 20-25 minutes, or until the pastry is golden and the cheese has melted and slightly browned.
10. 10.
    Remove from the oven and let it cool for a few minutes before serving.

Treat your ingredients with care...

• Puff pastry — Ensure that the puff pastry is thawed according to the package instructions before using it in the recipe. This will help achieve a flaky and golden crust.
• Onions — Thinly slice the onions for even caramelization. Cooking them slowly over low heat allows them to develop their natural sweetness and deep flavor.
• Gruyère or Emmental cheese — Grate the cheese just before using it to ensure maximum freshness and optimal melting.

Tips & Tricks

• For an extra touch of flavor, sprinkle some freshly chopped parsley or chives on top of the tart before serving.
• Serve the French Onion Tart warm or at room temperature as an appetizer, side dish, or even as a light lunch with a side salad.
• If you prefer a more intense onion flavor, you can use a combination of yellow and red onions.
• Experiment with different types of cheese to personalize the tart to your taste. Combinations like Gruyère and Parmesan or Emmental and Fontina work well.
• To save time, you can use store-bought caramelized onions instead of making them from scratch.

Serving advice

Serve the French Onion Tart as a delightful appetizer or as a main course accompanied by a fresh green salad. Cut it into slices and enjoy the warm, cheesy goodness.

Presentation advice

To enhance the presentation, garnish the tart with a sprig of fresh thyme or a sprinkle of chopped parsley. Serve it on a decorative platter or a wooden cutting board for a rustic touch.