Margarine mix with sugar, salt and vanilla cream fluffy. Add the rum, one by one the eggs, the flour with baking powder and pour the mixture into a greased baking dish with butter. Bake at 180 C for 30-40 minutes. Cream: Lemon and orange drain and mix with citrus liqueur. The bananas are cut into thin slices and put in the juice for 15 minutes, and then passaged. The cream was stirred and added to a banana. The cooled base is cut horizontally into two parts. Half cream smeared on one base, put it second base and cover with remaining cream. Decorate with chopped caramelized hazelnuts and leave in refrigerator for 1 night.