Finely slice one medium-sized, sound, peeled onion, place it in an earthen crock, with three slices of lemon, two bay-leaves, twelve whole peppers, four cloves, three whole mace, and three sprigs of parsley roots. Add to these two tablespoonfuls of sweet oil, a cupful of vinegar, and a pinch of salt. Place the meat or fish in this, and leave it to souse as long as necessary, or about six hours.