I have the top portion of a fondant cake left over. It is homemade chocolate cake, buttercream frosting (with butter), and covered in fondant. If I freeze it, will it be good later, or does freezing ruin the fondant? TIA!

Yes! I've actually only done it once, but it worked beautifully... I put the cake in a small box so that the plastic wrap wasn't actually touching the cake, then wrapped the box in plastic wrap and then stuck it in the freezer.. I took it out about two weeks later. The fondant did get sticky and shiney as it thawed but that went away and it was great. It was just a white fondant with white fondant accents so there was no risk of running colours... good luck...

Freezing fondant is no problem. I do it all the time and the cakes come out perfect. They do however get sticky as muddpuppy said and a wet look but i find if i take the cake from the freezer to the fridge and leave it there for 8 hrs or so the wet look goes away. Also be careful if the cake has been painted that the colours sometimes run.