Butcher a whole tenderloin into 2” filets.
Tie each tenderloin around the middle with butcher’s twine.
Season each tenderloin top and bottom with ½ tsp salt.
Place tenderloins uncovered on a wire rack in the fridge for 1-2 days.
Remove tenderloins from the fridge and let them come up to room temp.
Preheat the smoker to 250°F.
Season filets with beef rub.
Place filets on the smoker.
While filets cook, preheat a charcoal grill to 500°F.
Once filets hit an internal temperature of 115°F, remove them from the smoker.
Immediately place them on the grill, flipping every 30 seconds until an internal temperature of 125°F.
Remove from the grill, adding ½ tbsp compound butter to the top.
Let steaks rest for 15-20 minutes before serving.