Although we think of black-eyed peas as a distinctively southern U.S. phenomenon, they are part of the Italian tradition as well, though not as common as cranberry and cannellini beans.
Trim the root ends and dark green tops from the leeks. Cut the leeks into 2-inch lengths. Cut each piece lengthwise in half, then into strips about ¼-inch wide. Place the cut leeks in a large bowl of cold water and swish them around to loosen any dirt that is clinging to them.