Mix the butter with the vanilla sugar, the sugar and the egg until frothy. Sieve the cornstarch with the flour and baking powder over it. Then add the milk and coconut flakes and work all ingredients into a smooth dough.
Line a baking sheet with parchment paper. Put small heaps on top with the help of two teaspoons and bake in the preheated oven at 200 ° C for 8-10 minutes.