First of all, take chicken, cook and shred it and put it aside.
Cook the garlic and mushrooms in a saucepan in oil over moderate temperature for FOUR min, mixing often.
Blend in broth. Blend in vinegar. Blend in soy sauce.
Blend in red pepper flakes.
Heat to boiling.
Blend in chicken. Blend in coleslaw mix. Lower the temperature and allow to simmer for FIVE min.
Take the cornstarch and mix it with water and blend it into soup.
Allow to simmer for 120 seconds or till it becomes slightly thick.
Take away from heat.
Blend in sesame oil.