Preheat your oven to 300°F (150°C).
Remove the silver skin from the back of the spare ribs.
Mix the dry ingredients in a bowl to create a rub.
Rub the spice mixture evenly over the ribs.
Place the ribs on a baking sheet lined with aluminum foil.
Cover the ribs tightly with another layer of foil.
Bake in the preheated oven for 2 hours.
Remove the ribs from the oven and discard the top foil.
Brush the ribs generously with barbecue sauce.
Broil the ribs on high for 5-10 minutes until caramelized.