01 - Pat chicken breasts dry with paper towels and arrange in single layer at bottom of slow cooker.
02 - Whisk together melted butter, minced garlic, salt, black pepper, Italian herbs, paprika, and onion powder until thoroughly combined.
03 - Pour garlic butter mixture evenly over chicken breasts, ensuring all pieces are well coated.
04 - Cover and cook on High for 4 hours or Low for 6-7 hours until chicken reaches internal temperature of 165°F and is tender throughout.
05 - Transfer cooked chicken to baking sheet and broil 2-3 minutes for golden, lightly caramelized exterior.
06 - Sprinkle with fresh parsley and accompany with lemon wedges if desired.