This place has delicious ice cream, and the many GF options are kindly marked with a small tag in each flavor. Not sure about cross-contamination, so can’t give 5 stars, but they seemed to be aware and keep scoops separate. Probably not a good place for super-sensitive celiacs, but all was well for the 2 most sensitive in our family. Nice to wander around the old Derry city walls enjoying a big scoop of this ice cream!