Instructions. Preheat oven to 300°F. In a small bowl combine the brown sugar, salt, smoked paprika, garlic powder, mustard powder, cumin, and crushed red pepper flakes, if using. Optional Step: Remove the membrane from the bone side of the ribs.
Combine the brown sugar, chili powder, 1 tablespoon salt, 1 teaspoon black pepper, the oregano, cayenne, garlic powder and onion powder in a small bowl and rub the mixture on both sides of the ribs. Prepare the meat. Trim off any excess fat and remove the membrane from the back side of the ribs and then pat dry with a paper towel. Season the meat. Brush a light coating of yellow mustard on both sides of the ribs, then season liberally with dry rub seasoning. Go heavier on the meat side and lighter on the bone side.Insert the probe into the middle of a rack of ribs, avoiding the bones. Arrange the ribs directly on the grill grates, bone-side down, close the lid and cook until the internal temperature reaches 203°F, 3-4 hours. Add the apple juice to a spray bottle and spritz the ribs after 1 hour of cooking and every hour thereafter.
