Mrs. Vaughan'S Indoor Barbecue Sauce
["1 large lemon", "1 (6 oz.) can tomato paste", "1 can water", "1/3 can vinegar", "2 Tbsp. sugar", "1/2 stick margarine", "1/4 tsp. garlic powder"]
["Thinly slice the middle part of the lemon and juice the ends. Combine all ingredients in saucepan over very low heat.", "Simmer 30 minutes."]
["lemon", "tomato paste", "water", "vinegar", "sugar", "margarine", "garlic powder"]