Put flour, hazelnuts, sugar, salt, fat in flakes, egg and vanilla sugar in a mixing bowl. Work through with the dough hooks of the hand mixer. With cool hands quickly knead to a smooth dough. Cover and leave to rest in a cool place for about 1 hour. Roll thin strands of dough out of the dough onto a lightly floured work surface. Cut to lengths of approx. 24 cm and shape into small pretzels. Place on two baking trays lined with baking paper and bake in a preheated oven (electric range: 200 °C/ gas: level 3) for 12-15 minutes until light brown.
Then let them cool down on a cake rack. Chop the chocolate coating and melt on a hot water bath. Dip the pretzels halfway into the chocolate coating. Sprinkle the sugar crystals on the still moist chocolate. Leave to dry. Keep cool in well closed tins
Results in approx. 60 pieces