Mix flour, 75 g sugar, baking powder and 1 pinch of salt in a bowl. Add 2 eggs, 200 g quark, oil and milk and knead everything into a tough dough. Shape it into about 45 balls with floured hands.
Heat the oil and let the balls slide into the oil in portions. Fry for about 4 minutes, turning until golden brown. Drain on kitchen paper and let cool off.
For the cheesecake mixture, stir 600 g quark, cream cheese, 300 g sugar, pudding powder and cocoa until smooth. Separate 3 eggs. Gradually stir the egg yolks and 3 eggs into the quark mixture. Beat egg whites and 1 pinch of salt until stiff, fold in.
Grease a springform pan (26 cm Ø) and dust with flour. Add just under half of the quark mixture. Spread a part of the curd balls on top. Add the rest of the quark mixture and smooth it down.
Bake in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: see manufacturer) for approx. 50 minutes. Leave to rest in the closed oven for approx. 10 minutes. Leave to cool down with the oven door open.
Chop chocolate for the icing. Heat cream and coconut oil. Add the chocolate, stir vigorously after about 5 minutes until a smooth icing is obtained. Remove the cake from the mould and place on a cake platter.
Put some icing on the cake and spread. Put the rest of the quark balls on top. If curd balls are left over, use them otherwise. Dribble the icing onto the cake and chill for about 1 hour.