Separate the eggs. For the dough, mix 5 egg yolks, sugar, flour, baking powder and vanilla sugar. Beat 5 egg whites until stiff and add to the batter. Put the batter on a small baking sheet.
Bake in a non-preheated oven at 160 ° C for about 20 minutes on the middle rack.
For the topping, drain 3 cans of mandarins while collecting the juice. Boil 750 ml of the juice with 2 packets of white and 2 packets of red cake icing. Put the mandarins in the icing and stir well. Now distribute the mixture on the dough.
Beat 600 ml of cream with 3 cream stiffeners and 3 vanilla sugars until stiff and spread over the tangerine mixture. Mix 3 packs of vanilla sauce with the multivitamin juice and pour onto the cream. Chill the cake until ready to eat.