For the yeast dough, put 500 g flour, sugar, 1 packet of vanillin sugar, egg, salt and 75 g soft butter in a mixing bowl. Warm the milk lukewarm, remove from the heat, crumble the yeast into it and dissolve. Add to the flour mixture and knead to a smooth dough using the dough hooks of the hand mixer. Cover and leave to rise in a warm place for about 45 minutes. In the meantime, for the crumbles, mix 300 g flour, 175 g soft butter, cinnamon, 1 packet of vanillin sugar, egg yolk and 175 g brown sugar by hand to form crumbles. Clean, wash, halve and stone the apricots. Knead the yeast dough again with floured hands.
Put it on a greased fat pan of the oven (32 x 39 cm) and let it rise again for about 20 minutes. Then brush with crème fraîche and spread apricots on top. Spread crumbles on top, sprinkle with 50 g brown sugar. Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for about 45 minutes. Remove from the oven and let it cool down on a grid. Dust with icing sugar and decorate with mint
1 3/4 hours waiting time