Pour the flour into a bowl and press a depression into it. Warm 100 ml milk lukewarm. Crumble yeast into the hollow, add 40 g sugar and milk and mix with some flour from the rim to a thick mash. Cover the pre-dough and let it rise in a warm place for about 15 minutes
Melt the butter, add 100 ml of milk and warm up lukewarm. Add the rest of the sugar, milk mixture, eggs and salt to the pre-dough and knead with the dough hooks of the hand mixer to a smooth dough. Cover the dough and let it rise again for about 30 minutes
Wash, halve and stone the plums. Roll out half of the dough on a floured work surface in a rectangular shape (approx. 30 x 40 cm), cut into strips of approx. 6 cm width. Put the poppy seed filling into a piping bag with perforated spout and squirt it finger-thick into the middle of the strips. Fold the strips lengthwise and press them down a little. Grease the oven pan and dust with flour. Starting at the edge, place the poppy seed strands in a circle on the baking tray. Leave some space between the individual strands. Do the same with the second half of the dough. Leave to rise for approx. 10 minutes in a warm place
Cut plum halves into slices and put them between the dough strands. Bake in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: see manufacturer) for approx. 40 minutes. Remove and let cool on a cake rack. Sprinkle with icing sugar
Waiting time approx. 15 minutes