Drain the apricots. For the crumbled dough, mix the fat, 150 g sugar and flour first with the dough hooks of the hand mixer and finally with your hands to a crumbly dough.
Grease a springform pan (26 cm Ø), spread the dough in it and press it to the bottom. Pre-bake in a preheated oven (electric: 175 °C/ gas: level 2) for 15-20 minutes and let cool. Dab apricots dry and spread on the dough with the cut surface facing down.
Separate the eggs for the cheese mixture. Mix curd, mascarpone, remaining sugar and vanilla sugar with the whisk of the hand mixer. Add egg yolk, cream, starch, salt, lemon peel and lemon juice one after the other and stir in.
Beat the egg whites until stiff and fold in carefully. Crumble meringue coarsely. Pour cheese mixture into the mould. Spread meringue crumbs on top. Bake in the preheated oven (electric: 175 °C/ gas: level 2) for approx. 1 1/4 hours and let cool on a cake rack.
Remove the cake from the edge immediately with a knife. Remove the cake from the tin after about 2 hours and let it cool completely. Makes about 16 pieces.