Please some one tell me how to fix this, This is my second batch of MMF ( made it last night) and it came out stiff how can I fix it??? I need it for today would a kind soul give me some advice.
Try putting it in the microwave for a few seconds at a time until it softens up. (be careful - it may get a hot spot somewhere from the heating) MMF is usually pretty stiff after it sets and cures.
Kneading in some glycerin will help, they sell it at Michael's. Or you could knead in more shortening. Careful not to add too much or it will get too stretchy.
It could also be that you overcooked your marshmallows on this batch and crystallized the sugar in them. If that's the case, when you re-microwave, you will notice that it seizes up again very quickly while trying to work with it. Unfortunately, there is no really good way to fix it at that point and you will have to make another batch.
Mine usually gets pretty stiff after it sits. I just pop it in the microwave for about 10 seconds and that loosens it back up.