Preheat your oven to 300°F (150°C).

Remove the membrane from the back of the ribs.

In a mixing bowl, combine brown sugar, paprika, garlic powder, onion powder, salt, and black pepper.

Rub the spice mixture generously over both sides of the ribs.

Place the ribs on a large baking sheet and cover tightly with aluminum foil.

Bake the wrapped ribs in the preheated oven for 2 hours.

After baking, remove the ribs and carefully unwrap them.

Brush a generous layer of barbecue sauce on both sides.

For a crispy finish, grill the ribs for about 5-10 minutes or broil them in the oven.

Let the ribs rest for 10 minutes before serving.