Chocolate Tart Dough

INGREDIENTS

• 1 1/2 cups all-purpose flour
• 1/4 cup unsweetened cocoa powder
• 1/2 cup sugar
• 1/2 teaspoon salt
• 1/2 cup (1 stick) chilled unsalted butter, cut into small pieces
• 2 large egg yolks
• 2 tablespoons heavy cream, chilled
• 1/2 teaspoon pure vanilla extract