Buttercream is softer and more spreadable than most icings. In its simplest form, it is made by creaming butter with powdered sugar, although other fats can be used, such as margarine or lard. Coloring and flavorings are often added, such as chocolate, fruit purees, and various extracts. Great for Icing & Decorating, just open and start decorating. Cake Supplies On Sale has the CK’s famous Buttercream, fluffy white and colored buttercream icing, and also Satin Ice Buttercream Mix, soft dough-like base that mixes to a light, fluffy buttercream.