How earily can you make frosting for a cake? I have the wilton classes on Mondays and I was wondering if I could make the frosting ahead of time. I know you can bake the cakes ahead of time and freeze them but can you do the same with the frosting? I have a hand held mixer so it will take awhile for me to make the frosting. So is like a day ahead okay or is that to earily?
Wilton says their class icing can be left on the cabinet for 2 weeks. I personally prefer to put mine in the fridge and have kept it for longer than 2 weeks in there. 
Yes it will. It may sperate a little, but just stirring it fixes that.
Since I don't make cakes everyday, I put my left-over frosting in the freezer in ziploc bags. It comes in really handy if I need just a small amount of a certain color. After I put it in the bag and seal it up, I try to squish it into a flat shqpe though rather than a big blob so it will thaw faster.
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