Combine the Ingredients: In your slow cooker, combine the chicken thighs, two cups chicken broth, Great Northern beans, sweet corn, chopped onion, diced yellow bell pepper, roasted and diced Hatch chili peppers, salsa verde, minced garlic, cayenne pepper powder (optional), black pepper, smoked paprika, coriander, salt, cumin seed powder, and dried oregano. Stir everything together to combine.
Slow Cook the Mixture: Set your slow cooker to low and cook for 6-8 hours or on high for 3-4 hours. The exact cooking time will often vary depending on your brand of slow cooker and settings. When fully cooked, you want the chicken and beans tender and the flavors well-mingled.
Shred the Chicken: Once the cooking time is up, carefully remove the chicken thighs from the slow cooker using tongs and place them on a plate or cutting board. Pieces of the chili, such as corn and beans will stick to the chicken, and that’s okay. Shred the chicken using two forks, pulling the meat apart into smaller pieces, but allowing some larger chunks to remain. If you’re having difficulty using the forks, you can do this by hand if you follow good food handling practices.
Add Shredded Chicken Back into the Slow Cooker: Return the shredded chicken to the slow cooker and gently stir it back into the chili mixture, making sure it remains chunky.
Stir in Dairy and Adjust Seasoning: In a separate bowl, combine the sour cream and buttermilk until smooth. You can do this with a fork or whisk. Stir this creamy mixture into the slow cooker, ensuring it's well incorporated.
Taste the chili and adjust the seasoning with additional salt, pepper, or spices as needed.
Add More Broth If Desired: If you want a less thick consistency, you can use the remaining ½ cup of broth to add more liquid.
Simmer and Serve: Allow the chili to simmer for an additional 15-20 minutes to heat through and meld the flavors.
Serve hot, garnished with extra diced Hatch peppers, a dollop of sour cream, and a sprinkle of fresh cilantro and chives or shredded cheese if desired. You can also top with avocado, jalapenos, and tortilla strips or chips.