Posted by JackieThe Reasons Your Cake Is Bulging: Cakes develope bulges when they have been iced BEFORE they have a chance to settle. Gravity says outer edges ARE going to settle down some....even when you DO have the layers perfectly level. If there is a bulge, the outer edges of the cake won't stand up in mid air. It is going to settle down some. So give time for this to happen before you ice the cakes. Even push tiny cake scraps in between if there are large gaps. I don't usually have gaps because I bake at 325 deg. and so my cakes don't puff up so much in the center. Then to get rid of the hump, I lay a kitchen towel on top just as soon as I remove it from the oven and gently press the layers flat. (This needs to be done within the first minute upon removing from oven). Oh - the towel thing won't work if you over bake the cake...it will just spring back up, besides it is going to be dry and tasteless...so DON'T over bake. Test the cake by pressing your finger gently in the center. If it springs back up - its done...Take it out. At times you may still have a slight hump on the outer edge that can cause a bulge. Then I shave that part off with a serated-edged knife. Procedure to follow: Bake layers, cool well. Fill or put icing between...PLENTY of icing too. (medium consistency is fine).
- Let the cakes set several hours or overnight before icing them.
- Oh yes - always bottoms UP on those layers will help with this problem too. There are always going to be bulge problems if you insist on putting bottoms together. There is no 'breathing' room with this procedure. Besides, it is a lot easier to ice the flat bottom of a cake than one you have had to shave flat.