Scrub potatoes, pierce with a fork, and coat with oil, salt, and seasonings.
Wrap each potato tightly in foil.
Campfire: Cook in hot coals for 45-60 minutes, turning every 15 minutes.
Grill: Cook over indirect heat at 400°F for 45-60 minutes.
Oven: Bake at 425°F for 50-60 minutes.
Unwrap, slice open, and fluff the inside with a fork.
Top with butter, cheese, bacon, sour cream, and green onions. Serve hot.