2 white cake mixes = 8 layers. Bake @350- 15 minutes, 4 at a time fit. It took A LOT of frosting= 5 cubes of butter, 3# sugar, etc. But you really can't get away with less or your layers show through the sides. I decorated with fruit loops around the bottom edge. We cut slices really thin because the cake ends up so tall. Served a lot of people, easily 20. Loved this a lot.