1, 300g of flour, 0g of yeast100g, and appropriate amount of water, and mix well to form dough. Let it stand and ferment for about 10 hour. After taking out, add baking soda, alkali powder, white sugar, yeast powder and the remaining flour, mix and knead into yeast, knead thoroughly, and let stand for a while.

2. Cut the barbecued pork into small cubes, add noodles, sugar and sesame oil and mix well.

3. Pick the dough into small doses, flatten it, wrap it with stuffing, knead it into a sparrow cage, fold it at the top, and steam it in a preheated steamer with high fire.

4. Making method of noodle thickening: Boil the cooked pork in a spoon, add 50g onion and stir-fry until fragrant, take out, add 300g flour and stir-fry until light yellow, add water, sugar, salt and colored soy sauce and mix well.