Classic French macarons - or macaroons as we Americans love to call them - are the delicate and delicious round pastel cookies so beautiful they make a grand entrance in a plain white teacup, plate or even in a clear wedding favor box. This easy macaron recipe requires only 4 ingredients: egg whites, white and confectioners' sugar and ground almonds. As simple as that sounds, they may take a lot of practice to perfect. Want to avoid cookies that are cracked, flat or lumpy? Consult this macaron troubleshooting guide for best results.