Also commonly known as "Eskimo ice cream." Traditionally, it's made with seal or whale oil mixed with berries. When the white folks came to Alaska, along came Crisco and the many health problems associated with the change from oils with significant nutritional benefits to hydrogenated vegetable oils.
The traditional formulation is rich, strong, and actually quite good.
Well, in the winter it's pretty cold. It's partly a way to preserve berries over the winter. With the advent of Crisco, with it's unnatural ability to remain solid at room temperatures, things changed a bit and now it's typically refrigerated or chilled.