Krispy Kreme Is Giving Away Freebies For National Doughnut Day On Friday: To celebrate National Doughnut Day this Friday (June 7th), Krispy Kreme is offering a free donut of choice to customers with no other purchase required. You can also buy a dozen original glazed donuts for $2 when you purchase another dozen at regular price. Although limited-time offerings like Dolly Parton's Southern Sweets collection are excluded from the deals, other varieties are available. Krispy Kreme also recently launched a new rewards program that lets customers earn points for purchases, which can be redeemed for various bakery items and drinks.