Rinse the chicken breasts under cold water and pat them completely dry with paper towels. Season both sides with salt, pepper, and garlic powder. This seasoning gives the chicken a boost of flavor before the cheesy sauce gets added.
In a mixing bowl, stir together the cream of chicken soup, cream of mushroom soup, and cheddar cheese soup. Blend well until smooth. This mixture is the magic base for your sauce.
Layer the seasoned chicken breasts at the bottom of your slow cooker. Pour the soup mixture over the chicken, ensuring all parts are coated evenly. Set your slow cooker on low and cook for 6 to 8 hours. The low heat and slow cooking will allow the chicken to soak up all of that creamy flavor.
When it’s almost time to serve, gently stir in sour cream to the sauce inside the slow cooker. This is where the dish gets its extra creamy, tangy kick, making it truly irresistible.
Plate the chicken and drizzle it generously with the cheesy sauce. Your cheesy chicken is now ready to impress!