Roast On The Grill
["chuck roast", "meat tenderizer", "Worcestershire sauce", "1/2 c. ketchup or A.1.", "1/2 c. vegetable oil", "1/2 c. wine vinegar with garlic"]
["Pierce chuck roast; cover with meat tenderizer and pepper well. Mix marinade of vegetable oil, ketchup, vinegar with garlic and a few shakes of Worcestershire sauce.", "Cover roast and marinate at least 12 hours.", "Grill and baste with marinade.", "Roast has better texture when room temperature before grilling."]
["chuck roast", "Worcestershire sauce", "ketchup", "vegetable oil", "wine vinegar"]