One hour before serving, turn to High. https://whiskitrealgud.com/chicken-chow-mein-takeout-just-got-easier Remove chicken; bone and cut up meat into bite-size pieces. www.compstonkitchen.com/better-than-takeout-chicken-chow-mein Place chicken with water, onions and celery in slow cooker. Cover and cook on Low for 8 to 10 hours.