Prepare 1-layer 14 in. cake and 2-layer 6 in. cake (bake two 2 1/2 in. layers to create a 5 in. high cake) for stacked construction. Assemble cakes on a triple-thick cake board or foamcore base, wrapped in foil. Ice cakes smooth. Divide 6 in. cake into 10ths and 14 in. cake into 6ths.