Grate 100 g chocolate. Beat the eggs and 175 g sugar with the whisk of the hand mixer for 5-10 minutes until frothy. Sift flour on top and fold in. Fold in liquid cream and grated chocolate. Spread the mixture on a greased baking tray (38 x 32 cm) dusted with flour.
Bake in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for 20-25 minutes. Let cool off. In the meantime soak the gelatine in cold water. Mix mascarpone, quark, 200 g sugar, 75 ml lemon juice, vanilla aroma and coffee (if you like it, add banana liqueur to taste) until the sugar is dissolved. Squeeze the gelatine, dissolve lukewarm, stir carefully into the cream and spread on the base. Cut the cream plate in half lengthwise and place on top of each other. Chill for about 1 hour. In the meantime, roughly chop the remaining chocolate and melt it on a hot water bath. Peel and slice bananas and sprinkle with 1 tablespoon of lemon juice. Cut the cream plate into 10 narrow (3-4 cm) long slices, halve them.
Chill for about 1 hour. In the meantime, roughly chop the remaining chocolate and melt it on a hot water bath. Peel and slice bananas and sprinkle with 1 tablespoon of lemon juice. Cut the cream plate into 10 narrow (3-4 cm) long slices, halve them. Spread banana slices on top. Drizzle melted chocolate over them and let them cool down again. Serve decorated with chocolate shavings
waiting time approx. 1 1/2 hours