Preheat oven to 250 degrees F / 121 degrees C.
Mix 1 tablespoon cumin, 1 tablespoon smoked paprika, 1 tablespoon garlic powder, 1 tablespoon chili powder, 1 tablespoon salt, and 1 tablespoon xylitol in small bowl until well combined.
1 tablespoon cumin, 1 tablespoon smoked paprika, 1 tablespoon garlic powder, 1 tablespoon chili powder, 1 tablespoon salt, 1 tablespoon xylitol
Place 1 rack pork ribs on large sheet of aluminum foil and generously coat with dry rub mixture on both sides.
1 rack pork ribs
Wrap ribs tightly in aluminum foil, ensuring no steam can escape.
Put wrapped ribs on baking sheet and cook in preheated oven for 5 to 6 hours.
Once cooked, remove ribs from aluminum foil and place on baking tray.
Increase oven temperature to 400 degrees F / 204 degrees C.
Cook ribs for additional 7 to 8 minutes or until outside is crispy.
Remove from oven and let cool for several minutes before serving.