Delicious Onion Tart Recipe: Easy & Flavorful

Discover the perfect onion tart recipe, ideal for a cozy dinner. A tasty and easy-to-make option that will delight everyone.

Summary

• Ingredients
• Instructions
• Tips and Variations
• CHEF’s Tips

Ingredients

For the Dough:

• 2 cups (240g) all-purpose flour
• 100g cold butter, cubed
• 1 egg
• 4 tablespoons ice water
• 1 pinch of salt

For the Filling:

• 4 large onions
• 2 tablespoons olive oil
• 200g heavy cream
• 3 eggs
• 100g grated Gruyère cheese (or your preferred cheese)
• Salt and black pepper to taste
• Nutmeg to taste

Instructions

1. Dough Preparation: In a bowl, mix flour and salt. Add cold butter and mix with your fingertips until it resembles coarse crumbs.
2. Add the egg and ice water, mixing until a homogeneous dough forms.
3. Wrap the dough in plastic wrap and refrigerate for 30 minutes.
4. Filling Preparation: Slice the onions thinly.
5. In a pan, heat the olive oil and sauté the onions until soft and lightly golden.
6. In a bowl, mix the heavy cream, eggs, grated cheese, salt, pepper, and nutmeg.
7. Assembly: Preheat the oven to 180°C (350°F).
8. Roll out the dough and line the bottom and sides of a 22cm (8.5-inch) tart pan.
9. Pour the onion filling over the dough.
10. Cover with the cream and cheese mixture.
11. Bake for approximately 35-40 minutes, or until golden brown.
12. Serve the onion tart hot or cold.

Tips and Variations

• Add diced bacon to the filling for a smoky flavor.
• Try using different types of cheese, like provolone or parmesan.
• For a vegan version, replace the heavy cream with cashew cream and the eggs with mashed tofu.
• A pinch of fresh thyme in the filling enhances the flavor of the onion tart.
• Serve the onion tart with a green salad for a complete meal.

CHEF’s Tips

The key to a perfect onion tart lies in the correct preparation of the onions. Cook them slowly over low heat until they are very soft and sweet, releasing all their flavor. Don’t hesitate to caramelize the onions slightly, as this adds incredible depth of flavor to the filling. For the dough, use very cold butter and work it quickly to prevent it from warming up and compromising the final texture. A well-made dough is essential to support the filling and ensure a delicious and balanced onion tart. Remember to adjust seasonings to your taste, and don’t be afraid to experiment with different cheeses and spices. The onion tart is a blank canvas for your culinary creativity!