Instructions:
In a small mixing bowl add milk, 2 tbs of sugar, 2 tbs of flour and yeast. Mix until well combined. Set aside to start foaming. ( around 20 minutes) In to the bowl of your stand mixer add all the ingredients for the dough except melted butter. Add yeast mixture and mix with a paddle attachment until all is well combined. Add melted butter and mix for another couple of minutes. Spray with oil and cover with a kitchen towel. Let rise until doubled in size (around 2 hours). Mix your blueberries with sugar and flour. Sprinkle the dough with a little bit of flour and knead with a dough attachment until the dough is smooth and elastic. (around 5 minutes). Transfer the dough on to your working surface sprinkled with some flour. Knead it few more times and then roll into 0.5 cm thick square. Cut squares around 5 to 7 cm in size. Fold around 1 tbs of blueberries in to the dough squares forming nice buns. Place them on the baking sheet covered with parchment paper leaving them space to rise. Spray tops with non-stick spray. Let them rise for about 20 minutes. Brush with beaten egg and sprinkle with some sugar. Bake in preheated oven to 180 degree Celsius for 20 minutes. Enjoy!