I am thinking about trying the Fondant bow for the first time and I was wondering if anyone has or if I can use MMF instead of Wilton's fondant?

Hi, I haven't used MMF, but have read about it so many times. You might need to mix 50/50 gumpaste and MMF or add a 1/2 teaspoon of CMC/tylose to 250g of MMF. I never use fondant alone to make bows and stuff.

HTH.