I'm in the Diunkin at the time this post is created, I do not see egg nog ice cream, I asked the person who was helping me if he has seen it and he said no but perhaps other Dunkin/BR locations might carry it, I googled "egg nog ice cream at baskin" and it looks like it's available around Christmas time so when XMAS comes around in 2020 perhaps call the DD/BR to see if they carry it, hope this helps!
I haven't seen any in there they might though
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