Separate eggs. Beat the egg whites, 5 tablespoons of water and 1 pinch of salt with the whisk of the hand mixer until stiff, adding 150 g of sugar. Stir in the egg yolks. Mix flour, cocoa and baking powder, sieve onto the egg mixture, fold in
Spread the sponge on a greased pan of the oven (32 x 39 cm) lined with baking paper. Bake in the preheated oven (electric cooker: 200 °C/ circulating air: 175 °C/ gas: level 3) for approx. 10 minutes, remove from the oven, let cool on a cake rack
Mix 6 tablespoons of milk with pudding powder and 2 tablespoons of sugar. Bring the remaining milk and vanilla sugar to the boil in a saucepan, add the pudding powder while stirring. Bring to the boil briefly, remove from the heat. Put the pudding in a bowl, cover with foil, let it cool down for about 2 hours
Surround the sponge cake with a cake frame. Soak the gelatine in cold water. Whip cream until stiff. Squeeze the gelatine, dissolve and stir in approx. 1 tbsp. of whipped cream. Then stir into the remaining cream. Stir the cold pudding briefly with the whisks of the hand mixer. Stir in 2 portions of cream. Spread the vanilla cream on the sponge cake. Wash, clean and halve the strawberries. Cover cake with strawberries. Heat the jelly in a pot, spread on the strawberries, refrigerate for 3-4 hours
waiting time approx. 4 hours