Butter Frosting might be just the frosting you are searching for. Watching your figure? This gluten free and vegetarian recipe has 540 calories, 1g of protein, and 13g of fat per serving. This recipe serves 5. This recipe covers 1% of your daily requirements of vitamins and minerals. A mixture of butter, vanillan extract, milk, and a handful of other ingredients are all it takes to make this recipe so tasty. From preparation to the plate, this recipe takes around 45 minutes.