Coconut Sheet Cake

Coconut Sheet Cake 2 cups flour plus 2 Tablespoon flour 2 cups sugar 1/2 cup butter 1 cup water 1/2 cup shortening 1/2 cup buttermilk 1/2 teaspoon baking soda 2 eggs 1 teaspoon vanilla 1 teaspoon coconut extract 1/4 cup shredded coconut COCONUT FROSTING 1/2 cup butter 6 Tablespoons milk 16 oz. powdered sugar 1 teaspoon coconut extract Sweetened Shredded Coconut for topping In a large mixing bowl, measure flour and sugar. Set aside. In a medium sauce pan, combine butter, water, and shortening. Bring to a boil. After mixture reaches a boil, add it to the flour mixture and stir to combine. Add buttermilk, then baking soda, then eggs, then vanilla in that order, mixing in-between each addition. Stir in coconut. Pour into a greased 18x13 inch cookie sheet and bake at 400 degrees F for 20 minutes.