Place all of the ingredients except the “for serving” ingredients in a slow cooker and stir to combine. Cover and cook on low for 6-8 hours or on high for 3-4 hours.
Remove the chicken to a plate and, using two dinner forks, shred or chop the meat into bite-size pieces. (I like to cut the thighs in half across the grain first so that the pieces are not too long and stringy.) Optionally, the chicken may be shredded directly in the crockpot to your desired texture. Return the chicken to the slow cooker and heat until hot throughout.
Serve in a soup bowl over rice (or with a scoop of rice on top), with a side of bread for soaking up the flavorful broth, and/or with a garnish of green onions.