Krispy Kreme is offering a printable coupon for a free dozen original glazed doughnuts with the purchase of another dozen at regular price.

Want the coupon? Enter an email address, find friends and then a location based on your local zip code. After joining, a coupon good for one dozen original glazed doughnuts will appear in your e-mail’s inbox.

Head over to the Krispy Kreme Facebook page for more information. Keep in mind that this coupon can only be redeemed on April 28th.