1. first of all, wash the sweet potatoes, steamed on the pot, sweet potatoes cooled after peeling.

2. Peeled sweet potatoes, using a spoon to press into the puree. If there are silk need to remove the silk. (You can also straight down with a cooking machine to peel sweet potato into juice)

3. old noodles with warm water to slide, into a creamy water.

4. Add the old flour, baking powder (small amount), water, sweet potato puree (juice), and appropriate amount of cornmeal to the flour, mix well, and knead. Make a smooth dough by mixing the thin flour.

5. Add the yeast and let the dough rise until it doubles in size from the beginning.

6. Exhausted, handful of strips, with a knife to cut square buns or kneaded into round buns can be.

7. will be kneaded into shape steamed buns into the steam drawer, about half an hour after the steam water boiling hot and then the whole 20 minutes can be uncovered out of the pot. Sweet potato cornmeal buns are made.