Coarsely chop the couverture separately and melt separately in a bowl over a warm water bath. Remove from the heat and allow to cool slightly. Beat the egg, liqueur and 2 tbsp. sugar with the whisk of the hand mixer until creamy. Whip the cream with the whisks of the hand mixer until stiff
Halve egg cream and cream. Stir white couverture and 1/3 of one half of the cream, under one half of the egg mixture and finally loosely fold in the remaining 2/3 of the cream. Process the remaining egg cream, cream and dark chocolate coating in the same way. Fill the creams into bowls, chill for about 4 hours
Peel and slice the bananas. Melt butter in a pan. Steam banana slices for 2-3 minutes while turning. Add lemon juice and 1 tbsp. sugar. Fill bananas into a bowl and let them cool down. Spread a thin layer of dark or white chocolate cream on each cookie and place 2 on each plate. Cut 6 dumplings from the white mousse and place them on 6 biscuits. Also cut off 6 dumplings from the dark mousse and arrange them on the cookies. Arrange the bananas on plates as well. Chop the cashew nuts and sprinkle with white chocolate mousse. Decorate with mint
waiting time approx. 4 hours