Coarsely chop the chocolate coating and melt in a bowl over a warm water bath. Place on a marble slab or straight baking tray, smooth down and put in a cool place. Warm the jam slightly and pass through a sieve. Knead flour, cocoa, baking powder, almonds, butter, eggs, icing sugar, cinnamon and cloves first with the dough hooks of the hand mixer, then with your hands to a smooth dough. Wrap dough in cling film and chill for approx. 1 hour. Roll out 2/3 of the dough on a greased baking tray (32 x 39 cm). Stir jam and cranberries until smooth and spread on top.
Roll out the remaining dough thinly on a floured work surface. Cut into strips of approx. 1 cm width using a dough wheel. Place strips diagonally as a grid over the cranberries at a distance of approx. 1.5 cm. Bake in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for approx. 35 minutes. Use a spatula to scrape chocolate shavings from the baking tray and chill. Let the cake cool down and decorate with chocolate shavings before serving