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.

Some of the biggest doughnut chains, including Krispy Kreme and Dunkin', are offering some sweet deals on Friday in celebration of National Donut Day. The rounded pastry is being honored on Friday, June 6,