If covering with fondant do you spray your buttercream with anything first to make it stick to the crusted buttercream. I have also had a problem with air bubbles getting under my buttercream ( no fondant on cake )could you tell me why that would happen, very frustrating getting it all perfect then an hour later seeing a big bulge where it looks like my cake is trying to explode.
Tampa, Florida facebook.com/pages/curiaussiety-custom-cakes
