it is a dessert wine, very sweet made from grapes which have
been left on the vine in the frost long after harvest time, they
become very sweet. Inniskillin i think is one of the brands. There
is also Magnotta, Madonna and Niege.
To date I have only tried inniskillin, very very nice. I managed to
purchase a couple of bottles at duty free... initially the price
was $50, the last bottle I bought was $95. I hear now it is in 3
figures.