How-to Frost a Cake on a Serving Plate
Before transferring cooled cake layers to the plate, cut waxed paper into narrow strips and place around the plate's edges. Center the cake on the plate over strips. When you're finished frosting, carefully remove the waxed paper by pulling out one piece at a time from underneath the cake. Voila! You'll have a beautifully frosted cake, and a clean serving plate, too!