Finely chop the couverture and melt over a hot water bath. Leave to cool a little. Stir fat and sugar for about 8 minutes until creamy. Beat the eggs separately. Stir in chocolate. Mix flour, baking powder and salt, sieve over the egg mixture and fold in.
Put the dough into a greased springform pan (26 cm Ø) and smooth it down. Bake the cake in a preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for approx. 45 minutes. Take out and let cool in the tin. In the meantime, drain the cranberries and collect the juice. Stir 5 tablespoons cranberry juice, mascarpone, quark, icing sugar, lemon zest and juice until smooth. Whip 100 g cream and cream stiffener until stiff and fold in with the cranberries, except for 2 tablespoons for decoration. Mix liqueur and 3 tablespoons cranberry juice. Cut the cake horizontally once and sprinkle the liqueur mixture on the bottom cake layer. Place the cake ring around the bottom. Pour cranberry cream on top, smooth it down and cover with the second cake layer. Chill for about 1 hour.
Mix liqueur and 3 tablespoons cranberry juice. Cut the cake horizontally once and sprinkle the liqueur mixture on the bottom cake layer. Place the cake ring around the bottom. Pour cranberry cream on top, smooth it down and cover with the second cake layer. Chill for about 1 hour. Whip 250 g cream and vanillin sugar until half stiff. Spread the cake with 150 g of the cream. Fill the remaining 100 g of cream in a piping bag with perforated spout. Decorate the cake with it. Sprinkle the edge of the cake with pistachios (put 1 tablespoon aside for decoration). Serve the cake decorated with the remaining cranberries and pistachios
Whip 250 g cream and vanillin sugar until half stiff. Spread the cake with 150 g of the cream. Fill the remaining 100 g of cream in a piping bag with perforated spout. Decorate the cake with it. Sprinkle the edge of the cake with pistachios (put 1 tablespoon aside for decoration). Serve the cake decorated with the remaining cranberries and pistachios
waiting time approx. 3 hours