For the dough, crumble the yeast and mix with 1 teaspoon sugar until the yeast is liquid. Warm the milk lukewarm. Knead flour, yeast mixture, salt, 50 g sugar, egg, 100 g soft butter and milk to a smooth dough.
Cover and leave to rise in a warm place for about 30 minutes until the dough has doubled.
Wash and quarter the apricots and remove the stone. Bring 4 tablespoons of sugar and apricots to the boil while stirring. Remove from heat and let cool.
Roll out the yeast dough in the greased fat pan of the oven (36 x 40 cm) and let it rise covered for another 45 minutes. Press deep depressions into the dough with your fingers. Dice remaining butter.
Spread the apricots and butter cubes in the hollows. Mix almonds and 200 g sugar, sprinkle on the dough.
Bake in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: see manufacturer) for 30-40 minutes. Let cool on a cake rack and cut into pieces. Whipped cream tastes good with it.