Steps:

1, yam washed and peeled.

2, cut into small pieces, steamed in a pot and pressed into yam mud.

The picture comes from the Internet.

3. Put yam, flour and sugar into the basin, dig a hole and add yeast.

The picture comes from the Internet.

4. Knead the noodles into a sticky batter (if you have a bread machine, you can use a bread machine to make noodles more convenient).

The picture comes from the Internet.

5. Pour the batter into the mold (the mold can be smeared with oil to prevent adhesion. If there is no mold for making cakes, you can use a basin or a small bowl).

The picture comes from the Internet.

6. Put it in a place with high temperature and send it to twice the size.

7. Steam in cold water for about half an hour (steam until fluffy).

8, demoulding pendulum plate.

The picture comes from the Internet.