Oven-Barbecued Spareribs * 6 pounds pork spareribs -- * see note 1 cup catsup 1/2 cup molasses -- light 1/4 cup mustard 2 tablespoons cider vinegar 2 tablespoons Worcestershire sauce 2 teaspoons chili powder 1 teaspoon salt 1/4 teaspoon pepper 1 small green onion -- minced In 8-quart Dutch oven or saucepan over high heat, heat ribs and enough water to cover to boiling. Reduce heat to low; cover and simmer 45 minutes to 1 hour until ribs are fork-tender. Preheat broiler if manufacturer directs. In bowl, mix catsup and remaining ingredients. Place ribs on rack in broiling pan. Place pan in broiler with spareribs about 6 inches from source of heat; broil 20 minutes or until ribs are browned, turning ribs occasionally and brushing with sauce often during last 10 minutes of broiling. Makes 6 main dish servings. *Cut into 1-rib portions.