These cookies are light in texture, but decadent in flavor. They are perfect for anyone who needs to avoid grains either for the Passover holiday or dietary reasons. A word of advice – it is a slightly temperamental recipe so measure everything exactly. I have tweaked the original recipe from French baker, Francois Payard, who created it to be a riff on a French macaron. His recipe, among other adaptations, uses a lot more walnuts. So feel free to go a little crazier with the add-ins. Also, if you are looking for a perfect ice cream sandwich cookie, this is it! Once you have made the recipe once, you can experiment with other flavors like almond extract, cinnamon and cayenne, cardamom, etc.