Title says it all.
Any one doughnut you like, no purchase necessary. June 1st only.
Btw, last year it was 1 free glazed doughnut, and I went around a half hour before closing time. The line was pretty long, and they were making doughnuts, so they were trying to clear out the ones already cooked. So instead of 1 per person, they gave out 2-3 per person.
https://www.krispykreme