For the banana dream, beat eggs with sugar and water until foamy, mix nuts with baking powder and fold in. Spread on a baking tray and bake at 180°. Let cool and cut in half.
Warm Nutella in a bain-marie and spread on half of the base and top with halved bananas.
For the cream, whip the whipped cream, fold in the vanilla yogurt and QimiQ, spread some on the bananas. Top with the 2nd base and spread the remaining cream on top.
Then sprinkle the banana dream with flaked almonds and decorate with Nutella and egg liqueur.