Ingredients

• all-purpose flour - 1 ¼ cups
• unsalted butter - ½ cup, chilled and diced
• granulated sugar - ¼ cup
• salt - ¼ teaspoon
• egg yolk - 1
• heavy cream - 1 cup
• semisweet chocolate - 8 ounces, chopped
• vanilla extract - 1 teaspoon
• eggs - 2

Instructions

1. 1.

   Preheat the oven to 350°F (175°C).

2. 2.

   In a mixing bowl, combine flour, sugar, and salt.

3. 3.

   Add chilled butter and mix until the mixture resembles coarse crumbs.

4. 4.

   Stir in the egg yolk and enough cold water to form a dough.

5. 5.

   Roll out the dough and place it in a tart pan, trimming the excess.

6. 6.

   Prick the bottom with a fork and bake for 15 minutes until lightly golden.

7. 7.

   In a saucepan, heat heavy cream until just boiling, then remove from heat.

8. 8.

   Add chopped chocolate and stir until melted and smooth.

9. 9.

   Whisk in eggs and vanilla extract until well combined.

10. 10.

    Pour the chocolate mixture into the baked tart shell.

11. 11.

    Bake for an additional 20-25 minutes until set but slightly jiggly in the center.

12. 12.

    Allow to cool before slicing and serving.