Caramel Frosting II Be The First To Review By Anonymous recipe Comments | 0 Favorites | 4 Print This may take some practice. You must work quickly. Caramel Frosting II Ingredients 3 cups white sugar1 tablespoon all-purpose flour1 cup milk3/4 cup butter, softened1 teaspoon vanilla extract Instructions 1 Combine milk, butter, vanilla, and flour; set aside. 2 Melt sugar in a 10 inch skillet. This takes 15 to 20 minutes, be careful not to let sugar scorch! 3 Warm the milk combination and add to melted sugar. Work quickly because the sugar hardens fast. Frost on cooled cake.