Practice: 1. Peel the purple potato, wash it, cut it into pieces, steam it in water, and mash it into purple potato paste;

2. Pour the purple potato paste, tapioca starch and white sugar into a bowl, stir well, add river water and stir well, then knead it into smooth dough, and then make it into milky white batter as shown above. After you make a small ball, press it gently to make it look good.

3, boil water in the pot, put the water into the pot after boiling, cook until all the balls float on the surface, take a bath with cold water immediately after taking it out, which will have a refreshing taste of Q-bomb;

4. Add the old brown sugar into the bowl, put the steamed cassava starch balls into the bowl after solidification, and after stirring evenly, a comfortable Hong Kong-style afternoon tea is ready.

Cooking tips: 1. Purple sweet potato contains a lot of dietary fiber, which can promote gastrointestinal peristalsis and digestion, so that the sediments deposited in the stomach can be discharged immediately, thus preventing constipation.

2. Purple potato has low calories and basically no carbohydrates, which is beneficial to weight loss.

3. Purple sweet potato also contains mucin, which can help and prevent collagen diseases in the body and improve human immunity.

4. At the same time, purple sweet potato is also rich in classic elements such as selenium and iron, which can enhance human immunity, resist diseases, relieve fatigue, inhibit the spread of tumor cells in human body and delay aging.

5. At the same time, purple sweet potato can protect facial skin, and it is also good for the liver.

Purple sweet potato not only has the nutritional components of ordinary sweet potato, but also has antioxidant effect. Regardless of the price or anthocyanin content, purple potato has a high cost performance. Procyanidins have adjuvant therapeutic effect on 100 diseases, and are called the seventh essential nutrient after water, protein, human fat, protein, vitamins and minerals.