Lorie's Ultimate Coconut Cream Pie

Name: Lorie's Ultimate Coconut Cream Pie
Cuisine: American
Ingredients: 1 1/4 cups all-purpose flour; 1/4 teaspoon salt; 1/4 cup shortening; 1/4 cup cold butter, cubed; 1 teaspoon white vinegar; 2-3 tablespoons ice cold water; 1 1/2 cups whole milk, divided; 1 envelope (about 2 1/2 teaspoons) unflavored gelatin; 1 (13.5-ounce) can pure coconut milk; 1/2 cup sugar; 1/4 cup cornstarch; 1 large whole egg; 3 egg yolks; 2 tablespoons butter, room temperature; 1 teaspoon coconut extract; 1 (15-ounce) can cream of coconut; 2 1/2 cups shredded, flaked coconut, divided (sweetened, flaked coconut from the baking aisle); 1 1/2 cups heavy cream; 3 tablespoons powdered sugar; 1/2 teaspoon vanilla extract