Soak the snail tablets in cold water for one night, and add a little edible alkali powder to search and wash; Put clear water in a deep pot, add ginger slices and onion segments, boil the cooking wine with high fire for 10 minute, simmer with low fire for 15-20 minutes, take it out and immediately put it in ice water to make its meat contract more tightly; After water control, you can batch into pieces or cut into shreds for later use.