1 1/2 cups maple syrup
2 tablespoons chili sauce
2 tablespoons cider vinegar
1 1/2 tablespoons onion — chopped
1 tablespoon Worcestershire sauce
1 teaspoon salt
1/2 teaspoon dry mustard
1/8 teaspoon black pepper
2 pounds pork spareribs
Combine all ingredients except spare ribs and bring to a boil. Wipe spareribs with damp paper towels. Brush sauce on both sides of ribs. Place in a shallow, open roasting pan and bake for 1-1/2 hours, basting frequently with remaining sauce and turning to glaze.