Grease a fat pan (approx. 32 x 39 cm; approx. 3.5 cm deep) and dust with flour. Wash and clean the gooseberries.
Separate 6 eggs, chill the egg white. Cream fat, 200 g sugar, vanillin sugar and 1 pinch of salt with the whisk of the hand mixer. Stir in 3 eggs and 6 egg yolks one after the other. Mix flour, starch and baking powder and stir in portions briefly.
Spread on the fat pan. Spread gooseberries on top. Bake in the preheated oven (electric cooker: 200°C/circulating air: 175°C/gas: level 3) for approx. 30 minutes.
Beat 6 egg whites and lemon juice until stiff. While continuing to beat, add 300 g sugar and continue beating until the sugar is completely dissolved and the mixture is shiny.
Take the cake out of the oven, spread the meringue, leaving about 1 cm of edge all around. Bake the cake at the same temperature for about 15 minutes. Let them cool down. Dust with icing sugar before serving.