Black Gel Food Coloring Target. Get colorful with your cake batter and icing using these primary gel food colors. Black walnut shells can be boiled to make a dark brown or black dye to decorate eggshells.
Stir in enough yellow gel food coloring to make it a bright, sunny yellow. Take caution not to mix the colors, only swirl them to create the galactic effect for the glaze. The juice will stain skin, clothing, and anything it touches.
The mixture should be very stiff as you whisk.
Buy red, blue, and green food coloring.
I suggest getting a variety pack if you are just getting started. Made to produce deeper, richer colors by adding just a small amount of dye. Stir in enough yellow gel food coloring to make it a bright, sunny yellow.