Mix flour, 75 g sugar, salt and baking powder in a bowl. Add 1 egg and 175 g butter in pieces. Knead first with the dough hooks of the hand mixer, then with your hands to a smooth dough. Cover and chill for approx. 30 minutes
Roll out the dough round (approx. 34 cm ∅) on a work surface dusted with flour. Place the dough in a greased springform pan (26 cm ∅) and press down at the edges
Melt 125 g butter and let it cool down. Mix the quark, 150 g sugar, 2 eggs and pudding powder with the whisk of the hand mixer until smooth. Also stir in lemon juice and butter. Finally, stir in the milk with a whisk. Pour curd mixture into the mould
Bake in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: see manufacturer) on the 2nd rack from below for approx. 1 1/4 hours. Remove the cake from the oven and let it cool down
Waiting time approx. 30 minutes