re: buttercream HELP!!

i find when I use anything other than butter is happens. Buttercream isn’t buttercream with shortening or marg :) xx
It forms the Ring of hell!:) (butter doesn’t … and I always use a dam aswell (this buttercream has no liquid in .. just butter and icing sugar.(vanilla too ,but i’m referring to milk)

Wallace x http://www.facebook.com/AWGHobbyCakes