Crumbling the Cake: Commence by fragmenting the baked chocolate cake into fine crumbs. This should be executed in a medium-sized mixing bowl, ensuring that the cake is thoroughly crumbled.
Combining Ingredients: Proceed by incorporating the rum (or bourbon) and the sweetened condensed milk into the crumbled cake. It is essential to mix these ingredients until a uniform dough is formed, capable of being molded into balls.
Forming the Balls: Take the resultant mixture and shape it into balls, each approximately one inch in diameter. Subsequently, each ball should be rolled in chocolate sprinkles, ensuring an even coating on all sides.
Freezing Process: Arrange the prepared balls on a baking sheet lined with parchment paper. The balls should be frozen individually first, which will aid in maintaining their shape. After they have been sufficiently frozen, they should be transferred to a sealed container for prolonged storage in the freezer.
Finalizing the Recipe: If the balls are to be consumed shortly, it is advisable to allow them to sit in the refrigerator for a few days. This duration allows the flavors to meld more effectively. Alternatively, if they are not to be consumed immediately, they should be kept in the freezer and thawed prior to consumption.