Baked Apple Empanadas Recipe

Name: Baked Apple Empanadas Recipe
Ingredients: 3 cup all-purpose flour; 2 tablespoons sugar; 1 1/2 teaspoons salt; 10 tablespoons cold (unsalted butter, cut into cubes); 1 large egg (beaten); 1/2 cup ice water; 1 tablespoon distilled white vinegar; Cajeta or caramel sauce for serving (optional); 2 large apples (peeled and diced); 1/2 cup brown sugar; 1 tablespoon butter; 1 teaspoon cinnamon; 1/4 teaspoon nutmeg; 1 teaspoon lemon juice; 1/2 teaspoon salt; 1 tablespoon cornstarch; 1 tablespoon water