The batch of chicken stock that I make costs me less than $6 and yields approximately eight quarts of stock. The chicken bones are collected from previous meals, the parsley and thyme are usually leftover also. The other vegetables, carrots, celery, onions and garlic, all came from Produce World in Morton Grove, IL. This store purchases overstocked produce and will then sells it at a reduced price. Even better, they usually have a few rolling carts with produce that has been substantially reduced due to a few bumps and bruises. I'm real choosy when selecting these items, making sure that they are still fresh. Since I'm going to cook these ingredients right away, I know they're ripe with the imperfections.