I made this cake using my KA bowl. I didn't have a wondermold, so I decided to improvise. It sank in the middle, but I think it was because the recipe I used was so dense and heavy. On the way to deliver it, I hit a bump in the road and it got a huge crack up the back, but the mom didn't mind because she said they would eat it anyway. Pretty good for a first time especially since it was made with the KA bowl. All butter cream. Thanks for looking.