Coat both sides of the ribs with the yellow mustard, then sprinkle the barbecue seasoning evenly over the mustard.
Preheat your smoker to 225°F and add wood chips according to the manufacturer's directions. Place the ribs in the smoker with the bone side down and smoke them for 3 hours.
Remove the ribs and place them on a large piece of foil, bone side up. Pour the apple cider over the ribs, then seal the foil tightly.
Return the wrapped ribs to the smoker, bone side up, and smoke for another 2 hours.
Unwrap the ribs and brush them with barbecue sauce. Place back in the smoker, bone side down, for 1 more hour, or until internal temperature is 200°F-210°F.
Notes
Nutritional Information per serving: Calories: 639, Total Carbs: 16g, Net Carbs: 15g, Fats: 42g, Protein: 45g.