1. Soak the red beans in advance 12 hours, peel the sweet potatoes, and put them in the pressure cooker with jujube.

2. Melt a little yeast in warm water, add it to flour and knead until smooth.

3. Make the stuffing into balls in advance, so the size of the package will be the same.

4. Double the dough and you can start.

5. Knead into dough and cut into small pieces.

6. Roll dough with a rolling pin

7. Put the stuffing in the dough and wrap it into buns.

8. Put your mouth down and rub it in circles with your hands less.

9. Cover the drawer cloth and wake up for 20 minutes.

10. Brush the oil in the pan and put it in the pan. Boil the water for 20 minutes, then take it out of the pot.