Source: AllRecipes
From family: I don't have an official one but it is something like: 1x 14oz can of sweetened condensed milk, 2 tbsp butter and 2 tbsp cocoa in a pot. Heat on the stove (don't use high heat) while stirring slowly until it starts to separate from the sides. Cool (should be cool to touch; may want to place in the fridge) and roll into small balls. Roll in chocolate sprinkles.