Preheat smoker to 250°F. Wash and dry the potatoes. Pierce with a fork on all sides and the drizzle with olive oil, rubbing all of the skin. Season with 1 teaspoon salt.
Smoke the sweet potatoes for 2 hours or until you can pierce with a fork.
When the potatoes are done, split open with a knife and fluff the insides. Serve with your favorite toppings.
Notes
Don't skip piercing the potatoes as it allows steam to escape which reduces the tiny but real risk a potato exploding.
Use a fruit wood for a subtle smoke flavor like cherry or apple.
If you're short on time, you can smoke at 350°F for about 1 hour, but you'll have less smoke flavor.
Cooked potatoes should have a fork easily pierce through it.