Ingredients
- 2 racks pork spare ribs, about 5 lb total
- 2 tbsp yellow mustard
- 2 tbsp brown sugar
- 1 tbsp smoked paprika
- 2 tsp kosher salt
- 2 tsp garlic powder
- 1 tsp onion powder
- 1 tsp black pepper
- 1/2 tsp cayenne pepper
- 1 cup barbecue sauce
- 2 tbsp apple cider vinegar
- 2 tbsp unsalted butter
Instructions
Follow each step in order. The directions below are written so a beginner can understand what to do, what to look for, and when to move on to the next step.
- Step 1.Remove the thin membrane from the bone side of each rack by loosening one corner with a knife and pulling it away with a paper towel for grip.
- Step 2.Pat the ribs dry, spread a thin layer of mustard over both sides as a binder, and combine the brown sugar, paprika, salt, garlic powder, onion powder, pepper, and cayenne.
- Step 3.Season both racks generously on every surface, then let them stand while the smoker or covered grill stabilizes at 250°F for indirect cooking.
- Step 4.Place the ribs bone-side down away from direct flame, close the lid, and cook for about 2 hours until the rub has formed a dry, deep-colored bark.
- Step 5.Lay each rack on heavy-duty foil, add a tablespoon of butter and a small splash of apple cider vinegar, then wrap tightly so steam cannot escape.
- Step 6.Return the wrapped ribs to indirect heat and cook for about 90 minutes, checking near the end for tenderness rather than cooking only by the clock.
- Step 7.Unwrap carefully, return the racks bone-side down, and brush a thin, even layer of barbecue sauce over the meat side.
- Step 8.Cook uncovered for 20 to 30 minutes until the sauce becomes tacky and glossy, adding a second light coat if you prefer a stronger barbecue glaze.
- Step 9.Check doneness by lifting a rack with tongs; it should bend readily and show small cracks on the surface while the meat still holds to the bones.
- Step 10.Rest the ribs for 10 minutes, slice cleanly between the bones, and serve with additional warm barbecue sauce on the side.

