Knead flour, sugar, grounded nuts and butter (in pieces) to a dough.
Form to a 3 cm Ø roll, cover and place in the fridge.
Cut the roll in equal pieces and form to crescents (moon).
Place crescents on baking tray with baking paper.
Bake in preheated oven at 180° C for about 15 minutes.
Remove, wait for 2 minutes and roll carefully in the vanilla-sugar-mix. Crescents should still be hot.
Leave to cool. Best keept in a cookie box.