Cream fat, sugar, vanillin sugar and salt. Stir in eggs. Add milk. Mix flour, cornstarch and baking powder, sieve over it and stir in. Line the bottom of a springform pan (24 cmØ) with baking paper.
Pour in the dough and smooth it down. Bake in the preheated oven (electric oven: 175°C/ gas: level 2) for approx. 30 minutes. Let it cool down and cut through horizontally once. Roast the flaked almonds.
Drain the apricots. Mix the poppy seeds, marzipan and bitter almond oil to a smooth mixture. Whip 100 g cream until stiff and fold into the poppy seed mixture. Place a springform pan rim around a cake base and cover it with apricot halves, up to 5-6 pieces of zirren.
Spread with poppy seed mixture and cover with the second base. Put the cake in a cool place for about 1 hour. Whip the remaining cream and sugar until stiff. Remove the cake from the tin and spread a good half of the cream all around.
Put the rest of the cream in a piping bag with a star-shaped spout and squirt a circle a little away from the edge. Sprinkle a few flaked almonds into the circle, press the rest to the edge. Cut the apricots into wide slices and place them in a star shape at the edge.