Ham Barbecue Sandwich(50 To 60 Sandwiches)  
["6 Tbsp. oleo", "12 Tbsp. chopped onion", "6 Tbsp. vinegar", "6 Tbsp. water", "3 c. ketchup", "6 Tbsp. Worcestershire sauce", "4 Tbsp. brown sugar", "2 Tbsp. mustard", "6 lb. chipped ham"]
["Cook chopped onion with oleo 5 to 10 minutes.", "Add all remaining ingredients (except ham).", "Cook another 5 minutes.", "Add ham and just heat.", "Serve in hot round rolls."]
["oleo", "onion", "vinegar", "water", "ketchup", "Worcestershire sauce", "brown sugar", "mustard", "chipped ham"]