When you think of the word “crust”, you probably think more of pie than cake. But crust can also be an important term to assign to cakes–particularly pertaining to buttercream. A crusting buttercream is one that will set up firmly enough so that it can be touched lightly without making a mark. Although still relatively delicate, this crust can be a very helpful asset to decorators, making a nicely primed surface for all sorts of cake decoration, from decorative piping to fondant or gum paste adornment.
I offered up a recipe and more information on Crusting buttercream for the website Craftsy--for the full article and recipe, visit Craftsy!