Now, I know it wasnt the recipe I used, because the MMF was really nice when I finished it and wrapped it.
A couple of days later, I went to roll it to put it on may cake, and it was so full of air bubbles that even as I was rolling it, bigger bubbles were forming between the table and the MMF.
It took me forever to get it rolled right, because everytime I got it the right size and thickness, when I went to put it on the cake it would stretch right out as I was trying to lift it (and it kept sticking to the rolling pin, so I couldnt do it like that either!) and was getting holes in it.

Once I finally got it on the cake, it had that many air bubbles in it that I ended up pulling it off and throwing it out!! Trying to smooth the bubbles out was creating a bigger mess, so I just gave up.
Does anyone know what I did wrong???

Did you knead the heck out of it before rolling out?

I was worried about kneading it too much... Is that the trick?

When making MMF it is really important to have the right amount of powdered sugar and knead it until it is silky smooth. (10 minutes by hand)

If you don't add enough p/s it will be too soft and will stretch and be a pain to use. I always suggest to people who have never messed with fondant to buy some wilton so you can see how fondant should behave....THEN make the MMF.

For me, I always need to microwave it for a few seconds before using it - it would be too hard for me to try to roll if I didn't do that. (it is very firm the way I make it after it has cured)

Like Loucinda said after it rests overnight, if it's kind of firm microwave a few seconds then knead real good before rolling out.

I always have this problem too! When I knead by hand, I continue to put giant air pockets as I'm folding and kneading on the counter. Doesn't seem to matter how long I knead it for..... I just put more and more bubbles. Must be my kneading method - maybe I just don't do it quite right? Anyhow, my point, lol , was that if I pop it into my KA, with the dough hook (after resting overnight) to knead itself for 2 mins, it's perfect. Maybe that might help? Good luck!

I dont have a KA unfortunately
I did put it in the microwave for abit before I kneaded it.... Maybe ill put it in the breadmaker LOL

Knead it into submission. This will also remove any "pock" marks that you might see. If you see the bubbles or the marks then you need to knead it even more. And, no, I haven't every kneaded it too much but have definitely kneaded it too little and had issues until I took it off my sheet and rekneaded it.

Cat