Pig's trotters are roasted with fire and soaked in warm water. Scrape the sticky hair and peculiar smell from the skin. Blanch the cooking wine with water and beat the bleeding foam. Take it out and put it in a pressure cooker. Add onion, star anise, cinnamon, fragrant leaves and sauce bag and simmer for 25 minutes. Such pig's trotters are rotten and tasty. The way to cook pig's trotters is very simple. I often like to put some onion, ginger and garlic, rock sugar, star anise and fragrant leaves, and some edible salt and oil, as well as cooking wine, etc. The pig's trotters made by me have a sweet taste, which is sweet and faint, and will not hide the original fragrance of the pig's trotters. I think it is perfect to make them.