Barbecued Pork Sandwiches
["1/2 c. chopped onion", "1/4 c. chopped celery", "1 clove garlic, minced", "2 Tbsp. margarine", "1 c. ketchup", "1/2 c. water", "2 Tbsp. brown sugar", "1 Tbsp. vinegar", "3/4 tsp. chili powder", "1/4 tsp. salt", "dash of pepper", "12 thin slices cooked pork", "6 hamburger buns, split and toasted"]
["In a medium skillet, cook onion, celery and garlic in margarine until tender, but not brown.", "Stir in ketchup, water, brown sugar, vinegar, chili powder, salt and pepper.", "Simmer, uncovered, for 10 to 15 minutes.", "Add pork; heat through.", "Serve meat on buns with sauce."]
["onion", "celery", "clove garlic", "margarine", "ketchup", "water", "brown sugar", "vinegar", "chili powder", "salt", "pepper", "pork", "buns"]