Don't let the long ingredient list scare you off! It's really simple.
Start by sautéing the onion and celery in the fat until soft, about 5 minutes.
Chuck everything else in the pot [except cilantro] and simmer for an hour. Soup, eh? Gotta love it! When it's done, remove the chicken and shred it up! Throw it back in the pot, along with the cilantro.
Do a little taste test and add salt/pepper if needed.
Serve up the soup with a generous dollop of sour cream. Fresh avocado on the side makes it extra delicious!