Soak fruit in cold water for about 1 hour. Put flour and salt in a bowl and press a depression in the middle. Heat half milk and 1 tablespoon sugar slightly. Crumble yeast into it and dissolve it. Pour into the hollow and mix with some of the flour to make a pre-dough. Cover and leave to rise in a warm place for about 20 minutes
Melt 200 g butter over a mild heat, add the rest of the milk. Add ground almonds, 50 g sugar, vanillin sugar and lemon zest to the pre-dough and knead everything smooth with the dough hooks of the hand mixer. Cover and leave to rise for about 30 minutes
Drain the fruit, pat dry and cut into small cubes. Stir into the poppy seed bake
Line a baking tray (approx. 35 x 40 cm) with baking paper. Roll out dough on a little flour to a rectangle (approx. 30 x 35 cm). Spread the poppy seed mixture on top, leaving a 2 cm wide rim all around. Roll up the dough from the long side and press it slightly flat. Whip from the long side to 2/3. Place on a baking tray and pre-bake in a preheated oven (electric range: 200 °C/recirculating air: 175 °C/gas: level 3) for approx. 10 minutes. Then continue baking at 175 °C (fan oven: 150 °C/gas: level 2) for approx. 40 minutes
Melt 75 g butter. Brush the hot stollen with 1/3 of the butter and then dust with 1/3 icing sugar. Repeat this procedure 2 times. Let it cool down