Soybean pettitoes soup
1. Scald the pig's trotters with boiling water, then remove the hair and scrape off the floating skin;
2. Soak soybeans in advance 1 hour for standby;
3. Wash and slice ginger;
4. Cut the green onion into sections;
5. Add water and ginger slices to pig's trotters, boil and skim off the oil;
6. Add wine, onions and soybeans, cover and cook with slow fire;
7. Until it is half crisp, add refined salt and cook for 1 hour;
8. Transfer monosodium glutamate.