Place chicken in crock pot
Add all other ingredients over top of the chicken.
Cook 4 hours on high.
When done remove chicken and shred. I like using the paddle attachment on my Kitchen Aid. Super fast and easy, but you can also shred it with 2 forks.
Return chicken to the crockpot with the chicken broth mixture.
Serve on warm tortillas with lettuce, sour cream, tomatoes and shredded cheese.