Mix pudding powder with 2 tablespoons of milk. Bring 200 ml milk to the boil and thicken with custard powder. Season to taste with sweetener. Let the pudding cool down
Mix quark, oil, 3 tablespoons of milk, sweetness and 1 pinch of salt. Mix 150 g flour and baking powder. Stir in half, knead in the rest
Divide the dough into 6 pieces. Roll out each piece on a little flour (approx. 12 x 12 cm). Place on a baking tray covered with baking paper. Put the pudding and plums on top. Fold down the dough corners. Bake in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/gas: level 2) for 15-20 minutes. Let them cool down. Sprinkle with pistachios