How to Pipe the Frosting:
Fit pastry bag with desired decorating tip. Spoon enough frosting into prepared bag to fill about halfway. Use to pipe frosting onto cupcakes, refilling bag with remaining frosting if necessary. Or if you don't have a pastry bag, you can use a resealable plastic bag instead. Spoon frosting into bag, then cut piece off one bottom corner of bag before using to frost cupcakes.
How to Store:
How to Keep the Cake Plate Clean:
Make 4-inch square in center of cake plate with four 3-inch-wide strips of waxed paper. Stack and frost cake layers as directed in center of waxed paper square. Any frosting drippings will land on the waxed paper, keeping the plate clean! Remove waxed paper strips after frosting top and side of cake with remaining frosting.
How to Test Cake for Doneness:
To prevent overbaking, check cakes or cupcakes at the minimum baking time indicated in recipe. Insert a toothpick in center of cake. If it comes out clean, the cake is done. If it does not come out clean, return to the oven for a few additional minutes before rechecking.