The term COVER WITH BUTTERCREAM can be solved with the five-letter word FROST. Frosting is a type of icing made from sugar, butter, and other ingredients, such as milk or cream. Buttercream frosting is a popular type of frosting that is made with butter, sugar, and cream. It is often used to cover cakes and other desserts. Covering a cake with buttercream frosting is a simple process that involves spreading the frosting over the cake and smoothing it out.