Pour the heated milk into a bowl. Add sugar and yeast and mix well. In a separate bowl, mix the yogurt, sugar and salt and add them to the flour. Break the eggs, as one pay yolk and add the yeast mixture. Knead the dough, sprinkle with a little melted butter, then cover with a cloth and leave to rise for about 40 minutes. Place on greased surface dough and divide into 6 parts. Knead small buns. Stretch each inch balls around and watering with a spoon of melted butter. Arrange two stacks with three of the resulting bakery buns. With the blade of the knife cut the small circle in the middle of the dough and the two piles. Glue the two drives and knead them into a ball. Cut the big dough discs into eight triangles, each Coil muffin. Oilme inside a round baking tray. Arrange buns received as sunlight, and in the middle put the ball shaped. Smeared with egg yolk compartments. Bake in a preheated oven at 150C ° for 15 minutes and then at 200C ° for 30 minutes. Upon firing, it is important that the lower part of the oven to be heated more strongly than the upper.