# Put 1 cup water into the pot, and add
corn flour into the water while it is cold yet. Place the pot over medium heat and cook it by stirring constantly to turn the
corn flour to paste.
# When the
corn flour paste cools down, prepare the filling; Put the vegetable oil into a separate pot, when it turns to hot over medium heat add the ground meat into the pot.
# Cook it over medium heat. When the water evaporated totally add the finely chopped green
onions,
garlic and long
pepper in it.
# When they got cooked add the grated
potatoes, black
pepper and salt in it. After sautéing the mixture for a while remove it from the stove, and let it cool down.
# When the filling cools down, prepare the dough. Put the cool
corn flour paste into a deep bowl, add egg, vegetable oil and
yogurt in it and mix.
# Add
flour little by little while kneading the dough, add sodium bicarbonate and salt. Make the dough which has medium hardness. (Cover the dough and rest it for 20 minutes.)
# Divide the rested dough into 2 pieces. Roll out each piece into with 1/4 inch thickness.
# Cut circle shaped pieces from the dough via cup. Put the filling mixture onto the half of the circle, and then close the remaining part of the circle on it.
# After preparing all the buns by this way, place them onto the greased baking tray. Spread whisked egg all over.
# Place the tray into the oven which is preheated to 338 F and cook the buns until their surfaces turn to red. Serve them warm.
