I am berryholic.
10g fresh yeast
1 tsp salt
1 tbsp cinnamon
250g plain flour
35g butter in smaller cubes
2 tbsp brown sugar
1/2 lemon juice
First make the sweet bread.
Combine yeast with milk and sugar. Beat the egg and put 1/2 in a fridge. Add rest of the egg, salt, cinnamon and flour to the milk and pulse on low speed for 3-5 minutes.
On the low speed add butter cubes one after other and pulse another 5 minutes.
Cover the dough and let rise 1 hour in a warm place.
Knead 2-3 minutes and let rise another hour.
Roll the dough in to a round base for the pie and carefully place the dough into pie plate. Spread quark over the middle of the pie. Put blueberries over the quark and add lemon juice and sugar. Brush the dough edges with rest of the beaten egg.
Bake first 15 minutes at 200C, turn the heat down to 180C and cook further 15 minutes.