This recipe is all around tasty and very adaptable. Not concerned about gluten? Substitute a total of 1 1/4 cups whole wheat flour for the millet flour and corn starch. From there, you can make a traditional peanut butter cookie with the flattened criss-cross look from the tines of a fork, or fill the centers with jam. The honey and peanut butter are a natural combination and the honey helps these cookies retain their moisture.