Am making a wedding cake and I need the fondant to be white.i use Toba's recipe,it just dont seem white enough.what can I add to it

I have never used that recipe, so I am unsure how off-white it is. I suspect that the best thing to do would be to use white airbrush color after the fondant has been applied to the cake (test to see if this will work on a piece of fondant first)... and perhaps some pearl dust would help the appearance seem lighter as well - if that is the look you are going for.

I can't see of any other way to lighten fondant. Perhaps someone knows something I don't.

There is white gel/paste coloring. Even Wilton has some!