1. Preparation: Wash the sweet potato to remove dirt and impurities on the surface. Cut into thin slices about 1-2 mm thick, which can be cut with a knife or slicer.

2. Prepare pickling solution: prepare a clean container and put the sweet potato slices into it. According to personal taste and demand, add appropriate amount of white vinegar, salt, sugar, Chili powder, minced garlic, Jiang Mo, soy sauce and other seasonings. The dosage of each seasoning can be adjusted according to personal preference to achieve an ideal taste.

3, mix well and marinate: gently mix well, so that each piece of sweet potato is evenly stained with seasoning. Ensure that each piece of sweet potato can fully absorb the seasoning and obtain a uniform taste.

4. Pickling process: put the pickled sweet potato slices into a container and cover it. Put the container in a cool and ventilated place and marinate for 1-2 days. Curing time can be adjusted according to personal taste and preference. The longer the pickling time, the stronger the taste of sweet potato chips will be.

5. Drainage treatment: Take out the pickled sweet potato slices and wash the seasoning on the surface with clear water. This step is to remove excess salt and seasoning, so that the taste of sweet potato chips is more refreshing.

6. Steaming sweet potato slices: put the processed sweet potato slices into a steamer and steam them with medium fire for 10- 15 minutes until the sweet potato slices become transparent. Steamed sweet potato chips will be softer and more delicious.

7. Cooling and eating: take out the steamed sweet potato slices and eat them after cooling. It can be used as a snack, snack or side dish to enjoy delicious sweet and sour potatoes.