We stayed at Halwyn near St. Keverne and Roskilly's for about 13 straight years when the kids were young. Needless to say the first place we visited in Cornwall on the way was the ice cream parlour (then a wooden building overlooking the road). The choice of flavours was unbelievable, the family would even produce ice cream to order, notably banoffee, for the children. We all loved the place! We visited again recently and although there were a few changes the quality of the ice cream was just as we remembered it. Superb.
The Croust House at Roskillys Ice Cream – The Lizard