Krispy Kreme Coupon: Buy One Dozen, Get One Free 12/02/2013 By Charlene 4 Comments This post may contain affiliate links, please see my disclosure policy. Here is a new Krispy Kreme coupon that you can grab. It is for Buy One Dozen and Get One Dozen free on December 12th. 12/12 is a lucky day because it happens to be my birthday! Enjoy your doughnuts!