01 - Generously season chicken thighs on all sides with salt, pepper, paprika, dried thyme, and dried rosemary, pressing spices into meat to adhere.
02 - Heat olive oil in large skillet over medium-high heat. Brown chicken thighs for 2-3 minutes per side until golden brown, developing rich flavor through caramelization.
03 - Arrange carrots, potatoes, onion, celery, and garlic evenly in bottom of slow cooker, creating a bed for chicken to rest upon during cooking.
04 - Place browned chicken thighs over vegetable layer, ensuring pieces are not overcrowded for even heat distribution.
05 - Pour chicken broth over chicken and vegetables, distributing evenly throughout slow cooker.
06 - Cover and cook on low setting for 6 hours, or until chicken registers 165°F internally and vegetables are fork-tender.
07 - Ladle hot portions into bowls, garnishing with fresh chopped parsley if desired.