I made 3 - 8 inch layers ( full) of Cake Mix Doctor's Darn Good Chocolate cake and filled and iced with buttercream. I used wax paper to smooth the edges but I was too tired to make it perfect. My sister didn't seem to mind my flaws. I'm still learning so the piping isn't perfect...but I used my new kitchenaid mixer and WOW is all I can say. Double bathes of cake and buttercream made SOOOOO easy~