Take 3 tablespoons of the milk and stir it smooth together with pudding powder, sugar and rum flavour. Boil up the rest of the milk in a pot. Remove from the heat, stir in the pudding powder and boil for another 1 minute. Stir in quark and let the pudding cool down a little. In the meantime, for the dough, mix quark, milk, oil, 75 g sugar, salt and lemon peel. Mix flour and baking powder, add and knead everything to a smooth dough.
Form a roll, cut into 8 pieces of the same size and roll out round (approx. 11 cm Ø). Press a depression in the middle of the circles so that each piece of dough has a small rim. Place on a baking tray lined with baking paper and fill each piece with custard cream. Bake in the preheated oven (electric cooker: 200 °C/ gas: level 3) for about 15 minutes. Mix egg yolk and cream. Brush the edges of the pastry with the cream 3-4 minutes before the end of the baking time. Let the Copenhageners cool down on a cake rack. In the meantime, roast the flaked almonds in a pan without fat and let them cool down. Wash the plums, dab dry, cut in half and remove the stone. Cut the plums into slices and put them on the Copenhageners. Mix the cake glaze and the remaining sugar in a small pot and gradually stir in the plum nectar. Bring to the boil while stirring and pour the icing onto the plum slices with a tablespoon.
In the meantime, roast the flaked almonds in a pan without fat and let them cool down. Wash the plums, dab dry, cut in half and remove the stone. Cut the plums into slices and put them on the Copenhageners. Mix the cake glaze and the remaining sugar in a small pot and gradually stir in the plum nectar. Bring to the boil while stirring and pour the icing onto the plum slices with a tablespoon. Sprinkle with almond flakes and let it cool down. Dust with icing sugar and serve decorated with melissa. Results in 8 Copenhageners