Beat the butter until frothy. Gradually add the powdered sugar, vanilla sugar and the egg yolks and mix everything together well. Mix in the sifted flour alternately with the milk, tablespoonful at a time. Finally, fold in the chopped almonds and raisins. Put small heaps on a baking sheet lined with baking paper with the help of 2 teaspoons. Bake them at 180 ° C (fan oven 160 ° C) for about 20 minutes.