First, May baked from scratch a buttermilk layer cake, a Joy of Cooking recipe. I used a simple pattern that I drew for a stormtrooper, trimming the sides of the cake to form the top part of the helmet. With the trimmings, I built up the bottom part of the mask and the nose. It was frosted with cream cheese frosting. The black on the cake is licorice, and silver sprinkles were used for the teardrop, speakers and mouth.