Steps:
1. Tear off the white film (transparent) by hand;
2, wash;
3. Cut it in half and shave off the white tendons inside (very important). Slice half a piece of pork tenderloin diagonally (the pressure plate faces inward), the thinner the better! (Knife worker)
4. Wash pork tenderloin slices with clean water for 5, 6, 10, 7, 8 times (clean the blood inside). Soak in water with a little salt and a few drops of wine for at least 10 minute (double the isosceles tablet). Filter out;
5, put the right amount of water in the pot (preferably pork bone soup or broth) put ginger, boil (wanghuo) Northerners like oil in the soup, you can consider dropping a few drops of olive oil or something.
6. Mix the filtered kidney slices with sweet potato powder (be sure! This can wrap the water soaked in the waist piece and make the waist piece more tender);
7. Pour the waist slices into the cooked soup (still simmering), and after cooking for 1-2 minutes, bite off the waist slices and turn red (avoid cooking for a long time! ), then add chopped green onion, immediately turn off the fire, add salt and chicken essence to taste!