Does anyone know how to make black food coloring? I used green, red and blue food coloring, but I can't find the formula of how many drops of each to make black. I need to make black buttercream frosting for Halloween.

Thanks,
connie

Just buy it in black-Americolor and Wilton both make it.

i know americolor and ck brand sell a super black too. therefore you can use less and hopefully avoid the aftertaste.

I use Americolor Super Black. It has no nasty aftertaste no matter how much you use!