This was a birthday cake for my mother-in-law. It was my first time making flowers out of fondant (fondant mixed with gumpaste powder). Unfortunately, the pot started to crack at the bottom - I think the cake inside was lopsided and it was leaning forward. oops! Fortunately the cake was good - it was 4 layers of chocolate cake with cookies and cream filling. I got so rattled when it started to break, I forgot to write Happy Birthday! Any advice for working with fondant successfully?