1, prepare two sweet potatoes, 300g of flour, 4g of yeast.

2, clean the sweet potatoes, and then steam the sweet potatoes for 20 minutes.

3. Put the steamed sweet potatoes in a container and stir to make sweet potato puree.

4: Add flour to the mashed sweet potato, then add yeast.

5. Add cold water and flour in small quantities, and let it rise for about an hour and a half.

6. After the dough has risen, knead it a few times and roll it out into a large sweet potato crust.

7. Cut the dough horizontally and vertically into roughly one-centimeter squares, and let it rise for twenty minutes.

8, the electric cake pan to heat up a little, and then in the small steamed buns on it, the sweet potato small steamed buns can be cooked.