Cut wedge shape from each long side of 11x7-inch cake, so cake is 4 inches wide at one end and 7 inches wide at other end. On tray, place larger cake piece with 4-inch end at one end of tray. Place stacked rounded cake at 7-inch end of cake on tray. This cake is the kettle corn. Freeze 1 hour before frosting to reduce crumbs.