Dunkin Donuts is offering a free doughnut with any beverage purchase on Friday at locations nationwide, the doughnut chain said in a news release. Buy a dozen doughnuts at Krispy Kreme on Friday and score a dozen glazed for $2 at participating locations.

Whether you spell it "doughnut" or "donut," you can enjoy a free treat at various stores on Friday in celebration of National Doughnut Day.

Krispy Kreme is celebrating National Doughnut Day with $2 dozens of its Original Glazed Doughnuts and a sweet freebie for all customers. On June 6, all guests can purchase the retailer’s Original Glazed dozen doughnuts for just $2.