Authentic Barbecue Pork Spareribs | America's Test Kitchen

Ingredients

• 6 pounds pork spareribs , 2 slabs, trimmed of extraneous fat
• 1 tablespoon ground black pepper
• 2 teaspoons cayenne pepper (optional)
• 2 tablespoons chili powder
• 2 tablespoons ground cumin
• 2 tablespoons dark brown sugar
• 1 tablespoon granulated sugar
• 1 tablespoon dried oregano
• 4 tablespoons paprika
• 2 tablespoons table salt
• 1 tablespoon ground white pepper
• 3 tablespoons celery salt
• 3 tablespoons garlic powder
• 4 tablespoons unsalted butter
• 1 small onion , chopped
• 2 medium cloves garlic , minced
• 1 teaspoon paprika
• 2 tablespoons fresh lemon juice from one medium lemon
• 1 teaspoon dry mustard
• 1/2 teaspoon hot pepper sauce
• 1/2 teaspoon table salt
• 1/4 cup cider vinegar
• 1 (15-ounce) can tomato sauce