If you look in my photo's I just made a buttercream cake with polka dots and a #1 fondant for the top and I had no problem's with mine.. I left mine uncovered in the fridge until I delivered it. The girl I delivered it to left it out on her counter until the party started (about 6 hours later) and it still looked great. I also use a 1/2 butter 1/2 shortening buttercream... Not sure why yours would sink in like that. I so far haven't had that problem.
5/7/12 at 9:37am