Not sure what the answer is for doing ahead of time with the mmf. But as far as preparing the pan for baking I LOVE Wilton's Cake Release.
It is the best!!
I have made my mmf cakes as long as 4 days in advance. The fondant itself lasts for a long time. I think it would depend alot on the filling. And I would also be afraid of the cake not tasting fresh after sitting for too long. I wouldn't cover in saran it might stick to it. I use a covered cake carrier. But I know that you can put the cake in a box and then wrap the box with Saran or Foil. I like to refrigerate my cakes even when its not necessary. If your refrigerate your mmf be sure to let the condensation dry before touching it. As far as preparing my pans I use a cooking spray for baking from the grocery store. I really like parchement circles too.
I have made my mmf cakes as long as 4 days in advance. The fondant itself lasts for a long time. I think it would depend alot on the filling. And I would also be afraid of the cake not tasting fresh after sitting for too long. I wouldn't cover in saran it might stick to it. I use a covered cake carrier. But I know that you can put the cake in a box and then wrap the box with Saran or Foil. I like to refrigerate my cakes even when its not necessary. If your refrigerate your mmf be sure to let the condensation dry before touching it. As far as preparing my pans I use a cooking spray for baking from the grocery store. I really like parchement circles too.
I would never, ever, ever refrigerate a cake covered in MMF, or any fondant for that matter. When you take the cake out of the fridge and the condensation starts to build up under the MMF, you're just asking for a disaster...and a soggy cake.
As for making it ahead, you can...I prefer not to, but you can. I think it's 4-7 days in advance, based on preference.
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