Beat the butter until foamy. Gradually stir in the sugar, vanilla sugar, gingerbread spice and salt. Mix the flour and cornstarch, sieve and knead with the ground almonds into the butter mixture.
Turn the dough through a meat grinder with a shortbread cookie attachment and place the cookies on a baking sheet lined with baking paper and bake at 180 ° for about 12-15 minutes. For the half-cooled pastry, mix the remaining sugar and the remaining gingerbread spice and sprinkle the pastry with it.