Here are the deal: Participating Dunkin' Donuts restaurants nationwide will offer guests a free donut of their choice (while supplies last) with the purchase of a beverage (excluding bottled cooler beverages). At Krispy Kreme shops, no purchase is necessary.
There's a limit of free donut per customer.
And just so you know, National Donut Day, held the first Friday of June each year, was originally established in 1938 by the Chicago Salvation Army to honor women who served donuts to soldiers during World War One.
To find a participating Dunkin Donuts, click here.
To find a particiatping Krispy Kreme, click here.