Add the chicken, carrots, celery, onion, garlic, broth, thyme, bay leaves, salt, and pepper to the crockpot.
Cover and cook on LOW for 6–7 hours or HIGH for 3–4 hours.
Remove the chicken and shred it with two forks. Return the chicken to the soup.
Add the egg noodles and cook for 20–25 minutes, or until the noodles are tender.
Stir in the fresh parsley and adjust the seasoning to taste.
Remove the bay leaves and serve warm.
