Try this delicious cake recipe:
Cream butter, sugar and vanilla sugar, add eggs one by one. Alternately add the flour mixed with baking powder and the liquid. Lastly, add the rum, as far as provided.
The dough must be a little viscous, but drip easily from the spoon. Lastly, fold in other ingredients as listed.
Refrigerate for 1/2 hour, bake in batches.