Season the chicken with salt and pepper and place in a greased 6- to 7-qt. slow cooker.
In a small bowl, combine 3/4 cup scallions, the garlic, soy sauce, honey, ginger and sesame oil. Pour the mixture over the chicken, cover and cook on low heat until the chicken is tender and an instant-read thermometer inserted into a thigh away from the bone reads 165 degrees , about 4 hours. Serve with the pan juices, sprinkled with 1/4 cup scallions.