1. Yeast is dissolved in warm water
2. Pour the flour, milk powder and sugar into the basin, pour the tahini and yeast water, pour it, and mix it with chopsticks to form a floc
3. Then knead into a smooth dough, put it in the mixing bowl, cover with plastic wrap, and ferment at room temperature twice as large
4. Dough that has been fermented to twice the size
5. Take out the air, knead for a few minutes, knead until there are no pores on the cut surface, then knead into long strips and cut into 6 equal parts
6. Put it in a steamer and let it rise in a warm place for 15-20 minutes
7. Steam in a pot on cold water, turn high heat to medium and low heat for 15 minutes, turn off the heat and continue to simmer for 3-5 minutes before opening the lid.
