Here is a quick tutorial of how I made brown. Depending on what shade of brown you need, you might have to add different amounts of color. I like to have a rich brown color on hand, so I can mix it with white to get whatever shade I need at the moment.
Tips:
- Use Gel food colors, the liquid will water down your fondant and you will have a sticky mess!
- If your fondant does get too soft, knead in some powdered sugar.
- After you color your fondant, it's best to let it sit over night so the color can develop and the fondant can rest.