Memphis-style spareribs (visit site!)

Ingredients

• For the Dry Rub
• 2 tablespoons sweet paprika
• 1 1/2 tablespoons chili powder
• 2 teaspoons sugar
• 1 teaspoon onion powder
• 1 teaspoon garlic powder
• 1 teaspoon ground celery seeds
• 1 teaspoon ground cumin
• 1 teaspoon dry mustard
• 1 teaspoon dried oregano
• 1 teaspoon dried thyme
• 1/2 teaspoon ground cayenne pepper
• 1 teaspoon salt
• For the Ribs
• 4 lbs (2 kg) trimmed pork spareribs, in slabs
• 3 or 4 handfuls hickory chips, soaked in water
• Your favorite barbecue sauce, to serve on the side (optional)