HELP! I'm making a cake tonight for a get together for tomorrow that will have MMF on it. I just made my fondant, and I saw that it needs to sit overnight! I'm wondering if there is a way I can work with it tonight, or does it NEED to sit for 8+ hours?? And if it does need to sit, can you explain why? I've never worked with it before, and I need help, lol!

I never let it sit over night or 8 hours, I always use it right away, only when I add tylose to make it hard I do it like for 4 hours, but if not you can use it as soon as you want.

ditto what Frankyola said!

I never let it sit I always use it immediatly. I think it gets to hard to mess with if it sits too long and then I just have to put it back in the microwave for like 3 seconds.

I just put mine in the fridge for about an hour then use it. Works great. As a matter of fact I just made some and have to cover a cake soon , for tomorrow.