Grease a grease pan. Beat the eggs, icing sugar and vanillin sugar until creamy with the whisk of the hand mixer. Add oil and 250 g cream slowly while stirring. Sift flour, starch and baking powder over it and stir in.
Spread the dough on the fat pan. Bake in the preheated oven (electric cooker: 175 °C/circulating air: 150 °C/gas: level 2) for approx. 30 minutes. Let it cool down.
In the meantime, wash and clean the strawberries and, depending on their size, halve or quarter them. Sort out the remaining berries, wash them if necessary and let them drain. Clean the gooseberries and strip the currants from the panicles.
Mix the fruit with 2 tablespoons of sugar.
For the cream, chop the chocolate coating coarsely and let it melt slowly in a hot water bath. Remove from the bain-marie and allow to cool slightly - but it must remain liquid. Stir the crème fraîche at room temperature into the couverture.
Whip 200 g cream until stiff and fold in. Spread the cream on the cake. Spread the fruit on top, press lightly. Cut the cake in half, chill for at least 2 hours. Then cut into pieces.