Prep the slow cooker: Lightly grease the crock or use a liner.
This helps with cleanup and keeps the sauce from sticking.
Layer the chicken: Place the chicken in an even layer at the bottom of the slow cooker. Season with garlic powder, onion powder, and black pepper.
Add the flavor base: Sprinkle the ranch seasoning evenly over the chicken. Spoon the condensed cream of chicken soup on top.
Pour and dot: Add the chicken broth around the edges so it runs underneath.
Dot the top with cream cheese cubes and butter.
Cook low and slow: Cover and cook on LOW for 5–6 hours or on HIGH for 2.5–3.5 hours, until the chicken is tender and easily shreds.
Shred and stir: Remove the chicken to a cutting board and shred with two forks. Whisk the sauce in the slow cooker until smooth, then return the shredded chicken and stir to coat.
Adjust and finish: If the sauce is too thick, stir in a splash of broth or milk. Taste and adjust seasoning.
Garnish with chopped parsley or chives.
Serve: Spoon over rice, mashed potatoes, or pasta. Add steamed green beans, broccoli, or a crisp salad on the side.