Preheat the smoker to 225 degrees.
Rub the olive oil onto both sides and poke holes all over the sweet potatoes.
Place the sweet potatoes on the smoker. Cook for 2 hours.
Adjust the temperature to 350 degrees. Cook until the sweet potatoes reach an internal temperature of 205-212 degrees and have a soft interior when poked.
Slice the sweet potatoes and open and add butter and brown sugar or sweetener.
