You can buy a cake in aluminum foil (usually available for 0.99 €), but you can also use any other ready-made sponge cake. This one frees you from the packaging and erbröselt the complete mass with your hands including the chocolate icing. Then add the rum, first please be careful, the mass should not be too sticky – but also not too dry.
Now form small balls from the mass, which then fit into paper praline molds. These balls can now be rolled in chocolate sprinkles or colored sugar sprinkles or coconut flakes, etc. (this reminds a bit of a brown snowman). Finally, place them nicely in the praline molds and chill.
They can be eaten immediately, but taste even better if they have been in the refrigerator for a day.