1. Wash the sweet potatoes and purple potatoes, steam them in a pot for 30 minutes, remove the skins and crush them into puree.
2. Add 100 grams of glutinous rice flour and 25 grams of tapioca flour to the sweet potato bowl and purple potato bowl, and then knead them into a dough.
3. Take out the red bean paste and knead it into small balls.
4. Roll the dough into layers separately.
5. Pinch the sweet potato dough and put it in red bean paste to wrap it.
6. Put a little glutinous rice flour in the mold, put the dough in the mold, and pour in gently.
7. Remember to pour it on greased paper so it won’t stick.
8. Put water in the pot and steam for 20 minutes.
9. The finished product after being out of the pot.
