1.

Salted egg yolk is cooked in water and crushed.

2.

Chop the meat into powder, add salt, oyster sauce, soy sauce, pepper, sesame oil and sugar and mix well, not too much salt.

3.

Boil onion and ginger in water for a few minutes in advance, let it cool, then pour it in little by little and stir it in one direction.

4.

Pour in salted egg yolk

5.

Mix well and put in chopped green onion and refrigerate for later use.

6.

Sugar and yeast are dissolved in warm water, yeast water is poured into flour, kneaded into smooth dough, and fermented to twice the size.

7.

After the dough is fermented, exhaust it, divide it into 10 portions, and knead it round.

8.

Roll into a round dough with thin sides and thick middle, and put stuffing in the middle.

9.

Pinch out wrinkles

10.

Put it on a steamer and wake it in a warm place for about 20 minutes. After the water boils, turn to low heat and steam 15 minutes. When it is time to turn off the fire, continue to stew for 3-5 minutes before opening the lid.