Barbecue Ham Sandwiches
["1/3 c. minced onion", "3 Tbsp. butter or margarine", "1 c. ketchup", "1/2 c. water", "2 Tbsp. Worcestershire sauce", "1/3 c. vinegar or lemon juice", "2 tsp. prepared mustard", "1/8 tsp. salt", "2 lb. chopped chipped ham", "hamburger rolls"]
["Saute onion until tender in butter in saucepan.", "(Onion should look transparent.)", "Add remaining ingredients; simmer, covered, 10 minutes.", "Add 2 pounds chopped, chipped ham and heat through. Serve over hamburger rolls."]
["onion", "butter", "ketchup", "water", "Worcestershire sauce", "vinegar", "mustard", "salt", "ham", "hamburger"]