Heat your frosting in the microwave for 10-12 seconds or until liquid. Dip each cookie until covered. Let sit at room temperature for 1-2 hours or until the surface is firm and dry to the touch.
Mix one or two drops of food coloring with two teaspoons of water. You can add more water or color to achieve the right shade. Mix with a toothpick until no clumps remain.
Paint your cookies. Let them dry and enjoy!