Preparation materials: sweet potato 300g, chestnut 180g, and appropriate amount of rock sugar.
1, wash the chestnut and make a small mouth on it.
2. Put the processed chestnut in the pot and cook for five minutes.
3. After 5 minutes, peel off all chestnuts for later use.
4, sweet potato peeled and cut into pieces for use.
5, put water in the pot, put the chestnut and sweet potato in the pot and cook for 30 minutes.
6. After 30 minutes, put the crystal sugar in the pot, and then cook on high fire for 15 minutes.
7. After 15 minutes, the sweet soup of chestnut and sweet potato can be served.