This was a very hard recipe to record, as each family usually has its own version and usually has never written it down in an actual recipe. They generally just make it from memory and feel. After reading several descriptions on how to make Akutaq, I came up the the following recipe. I have never, personally, made the following recipe.
Grate or grind fat into small pieces. In a large pot over low heat, add fat and stir until it becomes a liquid (the fat should never get hotter than it is comfortable to your hand). Add 1/3 cup seal oil, mixing until it is all liquid. Remove from heat and continue stirring the fat in big circles.
While continuing to stir at a steady rate, add 1/4 cup water or 1 cup snow and another 1/3 cup seal oil. As fat slowly cools and starts to get fluffy and white, add remaining 1/4 cup water or 1 cup snow and remaining 1/3 cup seal oil, continuing to stir.
When the Akutaq is as white and fluffy as you can make it, fold in berries. Form into desired shape. Cover and freeze to firm up.
1 cup solid vegetable shortening*
1 cup granulated sugar
1/2 cup water, berry juice, or 2 cups loose snow (optional)
4 cups fresh berries, (blueberries, cloudberries, cranberries, salmon berries, or blackberries)**
* Crisco solid vegetable shortening is preferred.
** Use one or more different types of berries.
* The type of fat used determines how the Akutaq will taste and feel, as each animal has a different type of fat. Well-aged yellow fat is usually preferred because it has more flavor and whips up fluffier than does fresh fat. The ice cream can also be sweetened with sweetener or with fruits. Meat and fish Akutaq are not usually sweetened.
** Crisco solid vegetable shortening is preferred.
*** Use one or more different types of berries.
Akutaq - Eskimo Ice Cream Recipes: https://whatscookingamerica.net/History/Akutaq_EskimoIceCream.htm