Hi, I tried making MMF last night, I made it, then covered it lightly with crisco and doble wrapped in plastic wrap then I put it in a Ziplock bag, left it out over night. It looked great! But when I went to use it tonight, it was crumbly, impossible to knead, if I took SMALL amounts and kept kneading it, it slowly got better.......WHAT DID I DO WRONG? To much powder sugar? Is there any why to fix this batch? I want to try again tomorrow so I was HOPING someone would advise me on what went wrong so I dont do the same thing tomorrow.

Try kneading a little water in it and see if that helps...

I'd start with some water, if that doesn't work I've added a little extra marshmallow before to get it stretchy again. I don't think you'd have to toss the whole batch.

I will try the water, Thank you so much for the help! I will also try making more tomorrow and see, maybe use less powder sugar I am guessing.

I've had that happen, so I put it in the microwave for a few seconds that warmed it up and it was fine to work with.

Thank you so much, I added a little bit of water and heated it up a few seconds in the microware and I was able to use it. Hopefully at my next attempt it will come out better.