1) fat intestines with salt, vinegar scrub clean, and then wash with water repeatedly, the large intestine root hair cut out, turn over and spare.
2) Wash and organize the fat intestines with boiling water, blanch, cast with cool water to cool, control the water.
3) sauce pot into the old soup, placed on a high flame for broth, broth, put seasonings and meat ingredients, and then into the fat intestines, with a large fire boil, skimmed off the foam, and then switch to a small fire to cook until the fat intestines are soft and rotten, and then fish out. Smoke with sugar while hot and then smear with sesame oil can be.