Coconut Cake with Coconut Frosting Ingredients FOR THE CAKE: 2 tsp. butter, softened 3 cups plus 2 tbsp. cake flour 1 1⁄2 cups sugar 1 tbsp. baking powder 1 14-oz. can unsweetened coconut milk 8 egg whites 1⁄2 tsp. salt FOR THE FROSTING: 1 1⁄4 cups light corn syrup Pinch salt 2 egg whites 1