1 1/2 cups salad oil or olive oil
1 beef tenderloinInstructions
Combine soy sauce, mustard, salt, pepper, vinegar, parsley, garlic, lemon juice, and oil; blend thoroughly. Pour sauce over tenderloin in shallow bowl, reserving some for basting, if desired. Marinate for 24 hours, turning once.
Cook tenderloin on grill over medium coals to desired degree of doneness, turning occasionally. Baste with reserved marinade, if desired.