Mix the flour, cinnamon and baking powder.
In the meantime, melt the butter together with the milk.
Add the butter, milk, sweetener and yoghurt to the flour and knead it into a ball. If it still looks dry, add 1 tbsp of milk.
Heat up the blueberries in a saucepan, flatten them after 2 minutes. Keep on stirring till it thickens and the moist evaporated.
Roll the dough flat. Not too thin, around 3 mm thick. Spread the blueberries thinly on the dough. Roll up the dough and cut it in 3 pieces.
Place the rolls in a bowl and microwaved it for 90 seconds on 1000W. You might need to experiment a bit with it, if they are too dry, place they shorter in the microwave or add more milk. If they are too wet, place them 10 sec. longer in the microwave.
Drizzle the yoghurt on top.