Mix the butter, sugar, vanilla sugar, maple syrup and egg until frothy. Mix the ground walnuts, flour, baking powder and salt and stir into the butter and egg mixture. Use a pastry syringe to squirt shallow nests or flowers onto a baking sheet lined with baking paper.
Warm the honey and mix with the chopped walnuts. Use two teaspoons to put small heaps in the middle of the nests. Bake in a preheated oven at 160 ° C (fan oven) for about 15-18 minutes.