Hi Cake world! Here's what keeps happening to me: My buttercream is nice and smooth when I first frost the cake. But after about 1 hour at room temp I see a big air bubble between the cake and the frosting. It's like the whole side of the cake is sagging. I have to press the frosting back on which leaves it bumpy looking. Any one else have problems with this?
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9/2/12 at 6:23pm