Peel, wash and roughly grate the carrots. Coarsely chop the dark chocolate and mix 2/3 with the carrots. Separate the eggs. Stir egg yolks, soft fat, sugar, vanillin sugar and salt for about 5 minutes until creamy. Mix flour and baking powder and stir in alternately with the carrot and chocolate mixture.
Beat the egg whites until stiff and fold in carefully. Put them into a greased fat pan (32 cm x 39 cm) sprinkled with breadcrumbs and smooth them down. Bake in a preheated oven (electric cooker: 175 °C/ convection oven 150 °C/ gas: level 2) for approx. 30 minutes. Remove and let cool off in the fat pan. In the meantime, roughly chop the white chocolate. Melt 100 g dark chocolate and white chocolate separately in a hot water bath. Pour the chocolate into 2 small piping bags. Cut off a small tip of each piping bag and draw chocolate strips over the cake. Let the chocolate set.
Melt 100 g dark chocolate and white chocolate separately in a hot water bath. Pour the chocolate into 2 small piping bags. Cut off a small tip of each piping bag and draw chocolate strips over the cake. Let the chocolate set. Cut the cake into pieces. Coarsely chop the pistachios and sprinkle over them