01 - Generously season chicken thighs on all sides with salt, pepper, paprika, thyme, and rosemary, pressing the spices into the meat to adhere.
02 - Heat olive oil in a skillet over medium-high heat. Add seasoned chicken thighs and sear for 2-3 minutes per side until golden brown. This step develops deeper flavor but may be skipped for convenience.
03 - Arrange carrots, potatoes, onion, celery, and garlic evenly in the bottom of the slow cooker insert, creating a bed for the chicken to rest upon.
04 - Place browned chicken thighs directly over the vegetable layer, ensuring even distribution for consistent cooking.
05 - Pour chicken broth over the chicken and vegetables, covering as much surface area as possible. Cover with the lid securely.
06 - Cook on low setting for 6 hours until chicken registers 165°F internally and vegetables are fork-tender. Avoid lifting the lid during cooking to maintain temperature.
07 - Transfer chicken and vegetables to serving plates or a platter. Spoon some of the cooking liquid over the top. Sprinkle with fresh chopped parsley before serving.