Find a piece of cardboard and cut it to 6" (15cm) round. This will help support the cake while putting it together. Have some parchment ready to set the sliced layers on. Be sure to handle the cake gently, supporting it with a spatula as you move it around. For a two or four layer cake, gently slice off the dome of each layer using a serrated knife. A cake stand is helpful here, turning as you let the knife do the work. Cutting off the tops yields a flat top cake. Snack on the cutoffs or freeze them to make bon bons
or cake pops later.