What is the fastest method for drying a color flow picture? I can't make it till this evening and it has to be on a cake Friday morning

some people put it on top of the fridge...they say the warm of it helps...I never tried that..

I did some colorflow animals a couple of weeks ago for a birthday cake. I did them on Tuesday evening and dried them in front of a fan until Thursday evening. They weren't quite dry enough but I was able to make them work. I would have preferred more drying time.

I put it in fornt of a fan... they dry overnight and some of the morning. I use the wilton recipe- in my blog (link below)

How about a food dehydrator?

I used bulb/lamp. Just normal reading lamp and put it 8-10cm above your color flow. The heat will dry them quick. Big pieces will take longer like overnight. Small pieces just couple hours. HTH.