Paintbrush Cookies - cooking recipe

Ingredients

1 egg yolk
1/4 teaspoon water
food coloring
1 batch sugar cookie dough

Preparation

Mix egg yolk and water. (Double or triple amount if desired.).
Using a muffin pan or other small cups, divide the 'paint' among several cups, and add food coloring, as desired, to each.
Use creativity to blend seasonal colors. For example, blend a variety of shades of autumn leaves: 3 drops yellow, 3 drops yellow + 1 drop red, 2 drops red, 1 drop red + 1 drop green, 2 drops green, 1 drop green + 3 drops yellow, 2 drops yellow + 1 drop red + 1 drop green.
Roll cookie dough, and cut with cookie cutters.
Place cookies on greased cookie sheet.
Using water color paintbrushes and egg yolk paint, decorate the cookies.
Bake according to recipe instructions and cool on rack. If overbaked, the paint will brown and be less attractive.