1, Traditional cooking school or Culinary College: You can enroll in related courses of Traditional cooking school or Culinary College. These schools usually provide professional cooking training, including traditional skills and cooking methods.

2. Offline cooking courses: There may be activities to hold cooking courses in local communities, restaurants or cooking studios. You can find out whether there are relevant training opportunities by searching local cooking courses or consulting nearby restaurants.

3. Online cooking resources: There are many cooking videos, tutorials and recipes online. You can search for cooking methods related to fried chestnuts and baked sweet potatoes with candied haws on video sharing platforms, cooking websites or social media. These resources usually provide detailed steps and tips.