Powdered food coloring is best for recipes where no extra moisture can be added, like macarons or dry batters." Liquid food coloring is the dye that most novice bakers have in the pantry.

A liquid food coloring will be much thinner and lend a lighter color than gel, while a gel dye is much thicker and more ...

One way they can do this is to use a process called chromatography. In the activity below, you can try chromatography to separate colors in a mixture of food coloring! Place a coffee filter on a tray ...