Dissolve yeast in warm milk, add sugar, salt and egg, stir. Add sifted flour, stir, add soft butter. Knead into a smooth, elastic dough. Divide the finished dough into 9 equal parts. Round each part, cover with film and leave for 10-15 minutes.
Then roll each part into a round cake with a diameter of 18-20 cm, sprinkling flour on the work surface and dough.
Next, grease each flatbread with butter and stack it one on top of the other. Do not grease the last cake with oil. Wrap a stack of tortillas in film, place on a plate and place in the freezer for 30 minutes.
Next, sprinkle the table and stack of flatbreads with flour, roll out into one large circle with a diameter of 40-42 cm. Cut it into 12 segments, roll the end of each a little with a rolling pin so that the tip is thinner, and roll into a roll.
Place the finished pieces on a baking sheet lined with baking paper, tip down, cover and let rise. Brush the risen buns with beaten egg. Bake at 190°C for 15-17 minutes until golden brown.
Before serving, sprinkle the buns with powdered sugar and pour in the tea.