On my last visit to Shake Shack, I noticed they had added another seasonal fall item - apple cider and doughnuts. What I didn't know was that the doughnut holes are provided by the Doughnut Plant. They also supplied the doughnuts in the coffee and doughnuts custard flavor of the day. No wonder those doughnuts tasted so good!
Additional Shake Shack news: With any luck, Boston could get its own branch.