Before preparing paint, roll out some plain cookie dough and have
your child cut out cookie shapes and set them on a baking tray.
Beat the egg yolks with the water and corn syrup. Divide into 3
paper cups. Add a different food color to each cup. Go ahead and
bake the cookies. 3 minutes before they are done, remove from oven
and let your child paint them. Return tray to oven and finish
cooking. Cool before eating.