Layer the Base: Place cubed butter at the bottom of the slow cooker. Add the chicken breasts on top.
Add Everything Else: Pour in buffalo sauce, broth, tomatoes, corn, beans, onion, and all seasonings. Stir gently to combine.
Let It Cook: Cover and cook on LOW for 5-6 hours or HIGH for 3-4 hours until chicken is cooked through.
Shred the Chicken: Remove chicken, shred using two forks, then return it to the pot.
Finish with Cream Cheese: Add cream cheese chunks. Stir and cook for another 10 minutes until fully melted and creamy.
Serve and Enjoy: Garnish with green onions, avocado, blue cheese, or tortilla chips!