Wilton

Gel Food Coloring Set

$15.59

I use Wilton's gel food coloring to color the rice flour designs for my bread because I've always used it in the past for mixing Royal icing for sugar cookies. They make vibrant colors and I like having little tubs versus squeeze bottles so I can control the amount of gel that I use. 

There's a huge array of colors to choose from and I always found them readily at my local crafting supply store. You can use it to color your water before you mix your dough if you want to create rainbow or marbled bread as well.