To make gray icing, start with white icing and add a drop of black food coloring. Mix thoroughly to fully incorporate the colors, and add more black until the desired shade of gray is achieved.
- Use white icing as the base color
When combined, white and black create gray. Use white icing as the base color, and add a drop of black food coloring to the icing.
- Mix the food coloring and icing
Use a whisk or fork to thoroughly mix the black food coloring and icing until a light gray color forms.
- Add more food coloring
Continue adding one drop of black food coloring at a time, mixing well after each drop, until you achieve the desired shade of gray.