Cut 200 g butter into pieces. Mix with 100 g sugar, flour and 1 egg first with the dough hooks of the hand mixer, then with your hands to a smooth dough. Press the dough evenly flat on a greased fat pan of the oven (32 x 39 cm) or roll it out until the bottom is covered.
Separate 6 eggs. Wash the lemon hot, grate dry and finely grate the peel. Stir together with quark, cream cheese, egg yolks, 250 g sugar, vanillin sugar and almond pudding to a smooth cream. Beat the egg whites with the whisks of the hand mixer until stiff and fold into the cream.
Sprinkle the dough base evenly with breadcrumbs. Spread the frozen berries on top. Spread the quark mixture on the berries. Bake in the preheated oven (electric oven: 175 °C/ convection oven: 150 °C/ gas: see manufacturer) on the bottom shelf for approx. 45 minutes.
Turn off the oven, open a crack and let the cheesecake cool down.
In the meantime, boil up 300 g sugar with 100 ml water in a pan and reduce to a golden yellow caramel. Add 3 tablespoons of butter and cream. Simmer over a low heat until the sugar has dissolved.
Add the almonds and simmer for another 3 minutes. Spread the almond mixture on the cheesecake and let it cool down. Cut the cheesecake into about 24 triangles.