Preheat oven to 425F.
Wash and scrub sweet potatoes, leaving them wet.
Rub with salt. While still wet (with water), liberally coat sweet potatoes on all sides with the salt. The water will help it stick. Do not use oil.
Place them on the wire cooling rack, over a sheet pan. Prick once with a fork on the top.
Bake on the middle rack until the sweet potatoes are tender in the middle, and the internal temperature reaches 205F to 212F. Timing will depend on the size of the sweet potatoes: medium sweet potatoes take 40-60 minutes.
Slit the top open with a knife within 5 mins of removing from oven- fluff the flesh with a fork.
Serve with desired toppings.
