Give this universally beloved cookie a modern update by creating an ombre of color.
Each batch of dough can be divided in half for two colors. For red/pink and green/light-green variations, tint the dough to a light shade before dividing, then separate in half and add more dye to one half for a deeper color. (The golden variation has no food color.) To make all five colors pictured, you'll need to make three batches of dough. A cookie press can also be used in place of the piping bag.