At Krispy Kreme, Saturdays in October are Sweet-or-Treat Saturdays. Get a $1 Sweet-or-Treat Dozen to share with friends or neighbors when you buy any dozen! The Sweet-or-Treat Dozen contains 11 Original Glazed doughnuts and one festive Jack-o-Lantern doughnut! Redeem this deal in a shop or use promo code SweetOrTreat to redeem online. Additionally, Krispy Kreme is offering guests a FREE doughnut of choice when they wear a costume on Halloween to participating U.S. shops or drive-thrus.