1 cup port wine
Combine first 7 ingredients and pour over beef. Marinate covered 4-8 hours, turning once. Preheat charcoal broiler and pre-heat oven to 325 degrees.
Remove beef from marinade. Brown tenderloin on broiler on all sides. Place in baking pan and bake 1-1/2 hours or until inserted meat thermometer reads 140 degrees.
Bring marinade to a boil, then thicken slightly with cornstarch and water.
Slice tenderloin to desired thickness and serve with marinade.
Chef Bob Neisler