chopped green pepper, 1/4 cup chopped celery, and 3/4 cup chopped onion in 1 tablespoon butter or margarine in a large saucepan over low heat, stirring constantly, until the vegetables are clear and soft. Stir in 3/4 cup ketchup, 1/2 cup water, 1 1/2 tablespoons sugar, 2 tablespoons lemon juice, 1 1/2 tablespoons white vinegar, 2 teaspoons Worcestershire sauce, and 3/4 teaspoon dry mustard. Cook over medium heat for about 10 minutes, stirring occasionally. Add hot dogs to the sauce mixture, ...