If your butcher has not already done so, remove the thin silverskin membrane from the bone-side of the ribs by working the tip of a butter knife or a screwdriver underneath the membrane over a middle bone. Use paper towels to get a firm grip, then tear the membrane off.
In a small bowl, combine the mustard, 1/4 cup of apple juice (reserve the rest), and the Worcestershire sauce. Spread the mixture thinly on both sides of the ribs and season with Traeger Pork and Poultry Rub.
When ready to cook, start the Traeger according to grill instructions. Set the temperature to the Smoke setting, and preheat, lid closed for 10-15 minutes.
Smoke the ribs, meat-side up for 3 hours.
Transfer the ribs to a rimmed baking sheet and increase the grill temperature to 225 degrees F.
Tear off four long sheets of heavy-duty aluminum foil. Top with a rack of ribs abd pull up the sides to keep the liquid enclosed.
Sprinkle half the brown sugar on the rack, then top with half the honey and half of the remaining apple juice. Use a bit more apple juice if you want more tender ribs.
Lay another piece of foil on top and tightly crimp the edges so there is no leakage. Repeat with the remaining rack of ribs.
Return the foiled ribs to the grill and cook for an additional two hours.
Carefully remove the foil from the ribs and brush the ribs on both sides with Traeger 'Que Sauce. Discard the foil.
Arrange the ribs directly on the grill grate and continue to grill until the sauce tightens, 30 minutes to 60 minutes more.
Let the ribs rest for a few minutes before serving. Enjoy!
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