Ingredients preparation: fresh yam, chestnuts, pork tripe, onion, garlic, star anise, ginger, pepper, fennel wine 1, pork tripe washed with salt and vinegar, washed with a little flour, blanched, and drained of water 2. Put the pork belly, onion, ginger slices, garlic, pepper and star anise cooking wine back into the pork belly and simmer on low heat 1 hour. Put on gloves, peel the yam and cut it into elephant eye pieces, roast the chestnuts in a pressure cooker and peel them while they are hot, cut the red pepper into pieces, and cool the pork belly and cut them into strips for later use. Add pork belly, chestnuts, Chinese yam slices, red pepper, salt and pepper to the original soup, boil it slightly, and then take it out of the pot. How to wash pork belly? 1. Simple starch treatment method: rinse with water first, then add a little salt, vinegar and starch, and then rub with water. If you feel unclean, you can repeat it several times. Second, the boiling water method: 1, buy fresh pork tripe, rinse it with water; 2, burn a pot of boiling water, very hot, pour the water on the pork belly, it is best not to have a pork belly, just two minutes, pour the water. Here, the film on the pork belly will be removed or scraped off with a knife. 3. Wash the pork belly inside and outside with a handful of coarse salt, and then wash it with salt; 4. Wash the pork belly inside and outside with two teaspoons of raw flour and a little oil, keep it for five minutes, and then rinse it with clear water. Third, dry pot frying: rinse the pork belly with clear water, then rub it with salt and cornmeal for a few times, rinse it off, and fry it on both sides of a hot pot, so that it can be burned to no smell. Nutrition Tips: Pork tripe contains protein, fat, carbohydrates, vitamins, calcium, phosphorus, iron and so on. It has the effects of tonifying deficiency and strengthening spleen and stomach, and is suitable for people with deficiency of qi and blood and emaciated body. The nutritional value and dietotherapy function of pork belly are mainly aimed at the spleen and stomach. Pork belly is warm, especially suitable for people with weak spleen and stomach and easy diarrhea. Chestnut is rich in unsaturated fatty acids, vitamins and minerals, which can prevent and treat diseases such as hypertension, coronary heart disease, arteriosclerosis and osteoporosis. It is a nourishing product for anti-aging and prolonging life. Chestnut is a kind of dried fruit with high carbohydrate content, which can provide more heat energy for human body, help fat metabolism, and have the functions of invigorating qi, strengthening spleen and nourishing stomach and intestines.