Separate eggs. Mix flour and baking powder. Knead 150 g sugar, vanilla sugar, butter, egg yolks, 2 tablespoons water and flour mixture first with the dough hooks of the hand mixer, then knead with your hands to a smooth dough. Wrap dough in cling film and chill for approx. 30 minutes. Wash the currants and remove the berries from the stems. Roll out the dough on a greased baking tray and bake in a preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for approx. 15 minutes. Beat the egg whites with the whisks of the hand mixer until stiff.
Sprinkle 200 g sugar into the mixture. Fold in almonds and currants. Pour the mixture onto the pre-baked cake and spread. Bake in a hot oven at the same temperature for another 20 minutes. Remove from the oven and let it cool down. Dust with icing sugar and cut into pieces
waiting time approx. 1 1/2 hours