Krispy Kreme free dozen deal April 28 Apr 282013 Here’s a reason to purchase a dozen Krispy Kreme doughnuts. Another dozen is free. Participating Krispy Kreme shops are offering a free dozen glazed doughnuts April 28, with purchase of any dozen. The offer for Krispy Kreme’s Hero Appreciation Day deal requires a coupon, which is featured on the doughnut shops’ Facebook site. Sorry, the comment form is closed at this time.