Beat sugar, eggs and vanilla sugar until smooth. Add the nuts, candied lemon, orange peel and spice and combine well. Leave to rest in a cool place for 24 hours. Form golf ball-size dough balls. Place each of the dough balls on a baking wafer and spread them out evenly. Line the baking tray with parchment paper and place the Lebkuchen onto it.
Preheat oven and bake the Lebkuchen at 400°F (200°C ) for 15 minutes. Remove and leave to cool on a grid.
Mix confectioner's sugar with water and stir to a smooth paste. Glaze one third of the Lebkuchen. Melt the chocolate and glaze the second third of the Lebkuchen. Leave the rest plain.
Decorate the gingerbread with almonds and candied peel.