Roast Beef
["4 lb. beef", "1 pkg. onion soup mix", "1 can cream of mushroom soup", "2 Tbsp. tarragon vinegar"]
["Wrap beef in foil and pour mixture over beef.", "Seal and bake at 350\u00b0 for about 3 hours."]
["beef", "onion soup mix", "cream of mushroom soup", "tarragon vinegar"]