This tan, rather flat bean resembles a very large lima bean. It comes in a large pod that, unless very young, is inedible. Fava beans can be purchased dried, cooked in cans and, infrequently, fresh. If you find fresh fava beans, choose those with pods that aren't bulging with beans, which indicates age. Fava beans have a very tough skin, which should be removed by blanching before cooking. They're very popular in Mediterranean and Middle Eastern dishes, can be cooked in a variety of ways and are often used in soups.