01 - Place chicken thighs in an even layer at the bottom of the crockpot. Scatter chopped onion and minced garlic evenly over the chicken.
02 - In a mixing bowl, whisk together chicken broth, heavy cream, melted butter, Italian seasoning, paprika, salt, and black pepper until thoroughly combined and smooth.
03 - Evenly pour the seasoned cream mixture over the chicken and vegetables in the crockpot, ensuring all pieces are coated.
04 - Cover and cook on LOW setting for 6 hours, or until chicken reaches internal temperature of 165°F and is fork-tender.
05 - About 15 minutes before serving, stir cornstarch into cold water in a small bowl until completely dissolved and smooth.
06 - Stir the cornstarch slurry into the crockpot. Cover and cook for an additional 10-15 minutes, or until gravy reaches desired consistency.
07 - Transfer chicken thighs to serving plates and spoon thickened creamy gravy generously over the top.