Follow these straightforward steps to achieve rib perfection:

1. Preheat your oven to 275°F. This low temperature ensures slow and even cooking, making the ribs incredibly tender.
2. Remove the membrane from the back of the ribs for better flavor penetration. A small knife and a paper towel come in handy for this task.
3. In a small bowl, combine brown sugar, smoked paprika, garlic powder, onion powder, cumin, cayenne pepper, salt, and black pepper.
4. Rub the olive oil over both sides of the ribs, then generously apply the spice mixture, pressing it into the meat.
5. Place the ribs on a foil-lined baking sheet, meaty side up, and cover tightly with another layer of foil.
6. Bake in the preheated oven for 2.5 to 3 hours, or until the meat is tender and pulls away from the bones easily.
7. Remove the ribs from the oven and increase the oven temperature to 450°F.
8. Brush the ribs with barbecue sauce and return them to the oven, uncovered, for 10-15 minutes, or until the sauce is caramelized and slightly charred.
9. Let the ribs rest for a few minutes before slicing and serving.

As I learned from many family gatherings, patience is key. The longer, slower cook time really makes a difference.