Warm the fat and milk lukewarm. Stir in crumbled yeast. Mix flour, sugar and salt, add yeast mixture and egg and knead to a smooth dough. Cover and leave to rise in a warm place for 30 minutes. In the meantime, drain apricots well and dice them. Mix poppy seed bake, sour cream and egg yolk.
Stir in apricots and 50 grams of almond slivers. Knead the yeast dough again and roll out to a rectangle (about 25x35 cm). Place the poppy seed mixture in the middle, leaving a five centimetre wide rim on both long sides. Fold it over the poppy seed filling. Sprinkle the remaining almond slivers on the edge of the dough. Place on a baking tray lined with baking paper and leave to rise for another 15 minutes. Bake in the preheated oven (electric oven: 200 °C/ gas: level 3) for 35 to 45 minutes. Cover if necessary. Let cool on a cake rack. Pass the apricot jam through a sieve and warm it up. Spread the cake with it and let it dry.
Place on a baking tray lined with baking paper and leave to rise for another 15 minutes. Bake in the preheated oven (electric oven: 200 °C/ gas: level 3) for 35 to 45 minutes. Cover if necessary. Let cool on a cake rack. Pass the apricot jam through a sieve and warm it up. Spread the cake with it and let it dry. Dust with icing sugar. Results in twelve slices