Roughly chop the chocolate. Melt butter and chocolate in a small pot at low heat while stirring. Remove from the stove. Whisk eggs. Coarsely chop 150 g nuts. Put melted butter and chocolate in a large mixing bowl. Add 250 g sugar, vanillin sugar, salt, eggs, flour and baking powder.
Mix to a smooth dough with the whisks of the hand mixer. Fold in chopped nuts. Half grease the fat pan of the oven (32 x 39 cm) and divide it in half with a folded strip of aluminium foil. Spread the dough evenly on top. Bake in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for approx. 30 minutes. Remove from the oven and let cool on a cake rack. In the meantime heat up 3 tablespoons of sugar and red wine. Add the mulled wine seasoning and leave to stand for 5 minutes. Prick holes in the cake plate with a wooden skewer. Soak the cake with the mulled wine. Knead marzipan and 50 g icing sugar. Roll out to the size of the cake plate and place on top. Cut the plate into about 16 pieces (5 x 8 cm).
Add the mulled wine seasoning and leave to stand for 5 minutes. Prick holes in the cake plate with a wooden skewer. Soak the cake with the mulled wine. Knead marzipan and 50 g icing sugar. Roll out to the size of the cake plate and place on top. Cut the plate into about 16 pieces (5 x 8 cm). Mark crescents on each piece with a small cookie cutter. Stir 30 g icing sugar, 1 drop of food colouring and a little water until smooth. Spread moons with it. Caramelise 2 tablespoons of sugar in a small pan, stir in 32 nuts. Pour onto baking paper and allow to cool. Divide into individual nuts. Decorate cake pieces with it
Mark crescents on each piece with a small cookie cutter. Stir 30 g icing sugar, 1 drop of food colouring and a little water until smooth. Spread moons with it. Caramelise 2 tablespoons of sugar in a small pan, stir in 32 nuts. Pour onto baking paper and allow to cool. Divide into individual nuts. Decorate cake pieces with it