Preheat your pellet smoker to 250°F, using your preferred type of pellets. Alder, cherry, and maple are great for lamb.
Mix all the spices together in a small bowl and rub the spice mixture all over the lamb shoulder, ensuring it is well coated.
Place the lamb shoulder in the smoker, fat side up, before that you can trim the excess fat and smoke for about 4 hours or until it reaches 165°F
Remove and wrap the lamb shoulder in butcher paper and return it to the smoker.
Increase the smoker temperature to 300° and smoke until the internal temperature of the lamb reaches 200°F
Remove the lamb from the smoker and let it rest for an hour.
Shred or pull the lamb and serve it warm on a pita with hummus or BBQ sauce. Enjoy your delicious smoked lamb shoulder!