1. Mix flour, water, and yeast to form a smooth dough, let stand at room temperature
2. Wash the lean meat and put it into a food processor to break
3. Soak the mushrooms in warm water for half an hour in advance
4. Shiitake mushrooms are also crushed in a food processor
5. Ginger chopped
6. Chopped shiitake mushrooms, chopped ginger, light soy sauce, salt, bean paste, chopped black pepper, and egg whites into the lean meat bowl
7. Stir evenly, stir for a while
8. 50 grams of dough, roll out to be thin in the middle and thick in the middle
9. Wrap in the right amount of minced meat
10. Fermentation tank to double the size
11. Steam for 15 minutes and turn off the heat
12. Eat 4 in a row when it's out of the pot, it's so delicious. Those who want to eat may try it too
