When boiling sugar, the ratio of white sugar to water is (3:2).

(1) Take out the pan, add 150g white sugar and 100g water, and heat with low heat until the white sugar is completely melted. Do not stir, otherwise it will be easy to turn over the sand.

(2) When the color of syrup darkens and the big bubbles turn into small bubbles, stir the syrup quickly.

(3) When the color of the syrup is yellowish brown, smoke rises and bubbles no longer, the sugar for making shredded sweet potatoes will be cooked.

Nutritional value of shredded sweet potato;

Sweet potato has high nutritional value and is the champion of "Top Ten Best Vegetables" selected by the World Health Organization. Sweet potato; Also known as; Sweet potato, red yam, purple yam, sweet potato, sweet potato, sweet potato, etc. . People in different regions have different names for it. We call it sweet potato in Beijing. . Sweet potato has the effects of "tonifying deficiency, invigorating qi, strengthening spleen and stomach, and strengthening kidney yin", which makes people "live longer and have fewer diseases". It can also tonify the middle energizer, invigorate the blood, warm the stomach and fatten the five internal organs. Contemporary "Chinese Materia Medica" says: "It is sweet in taste and flat in nature. Return to spleen and kidney meridian. " "Buzhong and blood, Yiqi Shengjin, wide stomach, constipation. Indications: spleen edema, sore and swelling, intestinal dryness and constipation. "

Tonifying middle energizer with blood: Sweet potato is rich in nutrition, containing a lot of sugar, protein, fat and various vitamins and minerals, which can be absorbed by human body interactively, prevent and treat malnutrition, and can tonify middle energizer and replenish qi, which is beneficial to spleen and stomach deficiency in middle energizer and malnutrition in children;

Relaxation by relaxing bowels: After sweet potato is cooked, some starch changes, which can increase about 40% of dietary fiber when compared with raw food, which can effectively stimulate intestinal peristalsis and promote defecation. When people cut sweet potatoes, they see a white liquid oozing under the skin, which contains jasminoidin and can be used to treat habitual constipation.

Enhance immune function: Sweet potato contains a lot of mucin, which can prevent connective tissue atrophy of liver and kidney, improve immunity and prevent collagen disease. The minerals contained in sweet potatoes play a very important role in maintaining and regulating human functions. The calcium and magnesium contained in it can prevent osteoporosis;

Anti-cancer: Sweet potato contains an anti-cancer substance, which can prevent and treat colon cancer and breast cancer. In addition, sweet potato also has the effect of eliminating active oxygen, which is one of the causes of cancer, so sweet potato has a very obvious effect on inhibiting the proliferation of cancer cells;

Anti-aging and prevention of arteriosclerosis: the anti-aging and prevention of arteriosclerosis of sweet potato are mainly caused by its water-removing active oxygen. The mucin contained in sweet potato can keep the elasticity of blood vessel wall and prevent the occurrence of atherosclerosis; Chlorogenic acid in sweet potato can inhibit the production of melanin and prevent the appearance of finches and senile plaques. Red can also inhibit skin aging, maintain skin elasticity and slow down the aging process of the body.

(:Baidu Encyclopedia: Drawn Sweet Potato)