Cooked a whole chicken in the crockpot yesterday (chicken, water, salt, pepper, fennel seeds, cumin seeds). After it was done, I removed the breast meat and some thigh meat, chopped up the bones and covered with water and vinegar. Cooked the bones all night on medium. This morning, I strained out the bones, added a bunch of celery and two lamb hocks. Can't wait to get home and eat them. Bet my house smells awesome right now!