Alsatian Onion Tart Recipe

Ingredients for Alsatian Onion Tart

• 200g all-purpose flour
• Unsalted Butter
• 2 large egg yolks
• Pinch of salt
• Cold Water
• Olive Oil
• Onion
• 1 bay leaf
• 1 teaspoon fresh thyme leaves
• Salt And Pepper
• Wine
• 2 large eggs
• Single Cream

How to Make Alsatian Onion Tart

1. Preheat oven to 220°C (425°F). Sift flour into a bowl. Cut in cold butter using a pastry blender or your fingers until mixture resembles coarse crumbs.
2. Whisk together egg yolks, salt, and 3 tablespoons of ice water. Gradually add to flour mixture, mixing with a knife until a soft dough forms. Add remaining water if needed.
3. Form dough into a ball, wrap in plastic wrap, and chill for at least 30 minutes.
4. On a lightly floured surface, roll out the dough and fit into a 10-inch tart pan. Prick the base with a fork.
5. Blind bake the crust for 10-12 minutes, then remove and let cool.
6. While the crust bakes, heat olive oil in a large pan. Add onions, bay leaf, thyme, salt, and pepper. Cook over medium-low heat, covered, until onions are softened and translucent, stirring occasionally (about 20-25 minutes).
7. Add white wine and simmer uncovered until the liquid evaporates.
8. Remove bay leaf and season to taste. Set aside.
9. Reduce oven temperature to 190°C (375°F). Whisk together eggs and cream.
10. Spread the caramelized onions evenly into the cooled tart shell. Pour the egg mixture over the onions.
11. Place the tart on a baking sheet and bake for 15-20 minutes, or until the custard is set and lightly golden brown.
12. Let cool slightly before serving warm or at room temperature. Enjoy!