This cake frosting is named for the length of time it must be beaten in the final stage. Have the cake you are going to frost already prepared before making the frosting; it must be spread on while the beaten egg whites and sugar are still pliable; once frosted, the cake may sit out for several hours before being served.
A delicate flavor and light texture keep this frosting from being overwhelming. Coconut cake or lemon meringue cake are excellent bases for this frosting.Also try: Basic Buttercream, Ganache, and Chocolate Frosting
Made with beaten egg whites, this frosting is similar to meringue, but is more stable and sturdy enough for piping. And, like meringue, it also takes well to browning with a small kitchen torch. Use immediately, as the frosting will harden quickly (have your piping bag ready).This recipe is from "Martha Stewart's Cupcakes."