Chop banana chips. Coarsely chop the couverture as well and melt it together with the butter in a hot water bath. Finally stir in the crème fraiche. Beat the eggs and sugar until thick and frothy. Gradually stir the lukewarm couverture into the egg mixture. Fold in flour, ground almonds and banana chips. Grease a fat pan (36x32 cm) and sprinkle with breadcrumbs.
Pour in the dough, smooth it down and bake in the preheated oven (electric cooker: 175 °C/ gas: level 2) for about 25 minutes. In the meantime, bring the cream to the boil, remove from the heat and dissolve the cream sweets while stirring (if necessary, reheat them in between). Let the caramel cream cool down and put it in a cool place. Leave the finished cake to cool on the tray. Whip the caramel cream until thick and spread a thin layer on the cake. Decorate with a cake comb in a wavy shape. Cut the cake into 60-65 pieces
waiting time approx. 1 1/2 hours