I am wanting to make a cake with a cream cheese filling that is covered in MMF. I think the cake should be refridgerated because of the filling but I don't want the fondant to sweat or get soft. I will stack and fill the cake tonight (Wednesday) and put the fondant on tommorow. The cake is for a party Friday night. Do you think cream cheese filling would be okay to sit out for 24 hours? I could just refrigerate tonight and then leave it out after I decorate it tomorrow...what do you think?

You'll want to refrigerate the cake if it has cream cheese filling. I've refrigerated cakes w/fondant successfully several times. Just don't put any fondant/gumpaste decorations (i.e. flowers...etc.) on before refrigerating or they're likely to soften and wilt. Add those last minute after the cake has come out of the fridge.

Yeah, it's a pain. I just finished a cake exactly like that. I did put the cake in the fridge with the painted fondant decorations and it ran a bit.

Yep, refrigerate it. If you haven't made the fondant yet, Michele Foster's Fondant and also MacsMom's are both recipes that do well when refrigerated. If you are purchasing Satin Ice you can refrigerate that with no problems too. Otherwise, just keep in mind what MJoycake wrote about adding decorations last. Your cake will sweat when taken out of the fridge but just don't touch it and the moisture will eventually evaporate.

From my experience cream cheese filling cakes can stay outside for 24 hours. its not pratical to put 3 tiered cakes in a fridge as there is no room.

If the cake is for a paying customer you might want to ask your local health department, My health inspector said that cream cheese frosting can not stay at room temp for more than two hours. I live in Florida, it might be different where you live.

might sound really thick, but wots the difference between creamcheese frosting and all butter buttercream, doesnt the sugar preserve it outside of the fridge?

Okay, I have a question. If you bake it, place the fondant and place it in the fridge, then take it to place the decorations, if it's an elaborate cake how can you give yourself the time to decorate and have it ready for the day of the event?

My guess would that a nonperishable cream cheese filling would be used for cakes that must sit out beyond a safe amount of time. Such as: Earlene's cream cheese icing, or something made with a flavoring (such as Bettercreme with added flavoring).