Season the Chicken: Generously coat the chicken breasts with garlic powder, paprika, and black pepper for maximum flavor.
Mix the Gravy: In a bowl, whisk together the chicken gravy mix, cream of chicken soup, and water until smooth and lump-free.
Slow Cook: Place the chicken in the slow cooker and pour the gravy mixture over it. Cover and cook on low for 4–5 hours until the chicken is fork-tender.
Shred the Chicken: Remove the chicken, shred or cut it into bite-sized pieces, and return it to the slow cooker.
Add the Sour Cream: Whisk in the sour cream until fully combined, creating a smooth, velvety sauce. Let it warm through for a few minutes.
Serve: Spoon the chicken and gravy over mashed potatoes, rice, noodles, or stuffing. Garnish with black pepper or fresh parsley.