# Put the warm water, sugar
cubes, 1 egg, 1 egg white, salt, yeast and vegetable oil into a deep bowl. Mix them via your fingertips.
# Add flour
into the mixture little by little while kneading the mixture to make it smooth, make the dough soft.
# Cover the dough and rest it for 1 hour.
# Divide the rested dough into 12 equal pieces, cover them again and rest for 30 minutes again.
# Roll out each piece into dessert plate size via your fingertips by the help of flour
# Spread 1 tbsp vegetable oil all over each rolled out piece, roll it at first, and then wrap to get the both ends together to shape as circle.
# Place the buns onto the greased baking tray with some spaces between them. After resting them on the tray for 15 minutes spread the remaining yolk all over the buns.
# Place the tray into the cold oven. Bake them with 374 F until their surfaces turn to red. Serve them warm.