Grease the springform pan (26 cm Ø). Knead 250 g flour, 75 g sugar, 1 vanillin sugar, 1 pinch of salt, fat in pieces and 1 egg first with the dough hooks of the hand mixer and then briefly with your hands until smooth. Cover and chill for about 30 minutes.
Mix the poppy seed bake, crème fraîche and 2 eggs. Peel, quarter and core the apples. Sprinkle with lemon juice
Press 2/3 of the shortcrust pastry into the springform pan as a base. Form the rest of the dough into a roll and press it down to a height of approx. 5 cm at the edge of the form. Prick the base several times with a fork and sprinkle with breadcrumbs. Spread apples on top. Spread the poppy seed glaze on it. Bake in the preheated oven (electric cooker: 175 °C/circulating air: 150 °C/gas: level 2) for approx. 45 minutes
Separate two eggs. Beat 2 egg whites and 1 pinch of salt until stiff, adding 50 g sugar and 1 vanillin sugar. Beat 2 egg yolks separately into the mixture. Sift 30 g flour, starch and baking powder on top and fold in. Spread on the hot cake. Bake at the same temperature for about 25 minutes. Let it cool down
Heat the jelly and let it cool down. Whip the cream until stiff, adding 1 teaspoon sugar. decorate the cake with cream, jelly etc.