Add the chicken in an even layer in the bottom of the slow-cooker and add the garlic, onion, spices, chipotle peppers, diced tomatoes, broth, sweet potatoes and salt.
Cook on low for 7 hours.
Using two forks, shred the chicken evenly and stir to combine. Serve and garnish with your favourite toppings.
Notes
Want beans? You can substitute 1 sweet potato for one 14oz can of red kidney beans, rinsed.