Some Spaniards, like my friend Jose Andres, a chef based in Washington, D.C., who taught me this recipe, can talk until they’re blue in the face about fabada, the famous pork and bean stew they say is “the grandfather of the French cassoulet.” They will remind you to use only real fabes (dried beans you can find only at gourmet stores or specialty Web sites and that cost up to $20 a pound), tell you that