Versatility is the name of the game with this icing. Substituting liqueur, milk, or another citrus juice for the lemon juice lets you customize the icing for a variety of cakes. It's especially delicious drizzled atop loaf cakes.
These spirits may look frightening, but they're actually quite sweet. Make the Faces with melted chocolate painted inside the glass. A ghostly white vanilla milk shake is topped with piped whipped cream. And although you wouldn't want these spooks to haunt your house, they would be welcome at a Halloween get-together.