Mix together the salt, pepper, garlic powder and smoked paprika and sprinkle that on both sides of the lamb rack.
Heat up a large cast iron skillet on medium-high heat with 1 tablespoon of olive oil.
Sear the lamb for 2-3 minutes on each side until the outside is golden brown.
Prepare the pistachio crust by blending together the pistachios, bread crumbs, remaining olive oil and melted butter.
Apply dijon mustard onto your lamb as a binder and then add the pistachio/ bread crumb mixture all over the lamb until it's completely coated.
Set your smoker to 275°F and smoke your rack of lamb until the internal temp reaches 130°F.
While the lamb is resting for 10 minutes, combine your apricot jam and balsamic vinegar, heat up and mix together until it is combined.
Flip the rack of lamb so you can see the back of the bones and cut in between each one until you have separated them into individual chops. Lay the chops onto a platter and spoon on some apricot sauce and enjoy!