I just purchased a few powdered food colors and I am not sure how much to use. Does anyone have any advise on how much to add to fondant at a time. Is it more concentrated that gel?

I've never used them for fondant before. I was always under the assumption that they were for coloring coconut, sugar and loose things like that, in addition to chocolate which would seize if you used a colorant that contained water.

I would test it on a small piece of fondant, adding a little at a time until you get a feel for how much it takes. Let us know how it works.

I use it for icing, too.

I will try it this evening and let you know. The supplier that I bought it from said it gives great true color with little powder in her fondant. Here's to experiments!

I use powdered colors for painting. Just add a little lemon extract until you get the consistancy of paint that you want. I like mine a little thicker, so I add less. Makes beautiful vibrant paint colors for painting on fondant.