September 17, 2018 No Comments FREE Pumpkin Spice Cake Doughnut at Krispy Kreme On Tuesday, September 18, Krispy Kreme Rewards members can scan their app barcode at checkout to get a FREE Pumpkin Spice Cake Doughnut at Krispy Kreme. Locations. FREE Pumpkin Spice Cake Doughnut at Krispy Kreme – EXPIRED Facebook Twitter Add Comment Notify me of follow-up comments by email. Notify me of new posts by email.