Fall-off-the-Bone St. Louis Spare Ribs

Ingredients

• 1 slab St. Louis style spare ribs
• 2 Tablespoons seasoning salt
• 1 Tablespoon white sugar
• 1 Tablespoon brown sugar
• ½ Tablespoon garlic powder
• 1½ teaspoon cumin
• 2 teaspoons chili powder
• 2 teaspoons black pepper
• 1–1¼ cups barbecue sauce
• 2 Tablespoons barbecue rub
• ¾ cup brown sugar
• ¼ cup honey
• ¼ cup Challenge Butter (½ stick)
• ¼ cup apple juice
• ½ cup barbecue sauce
• 1 cup apple or cherry smoke chips