Preheat your oven to 425°F (220°C).
Scrub sweet potatoes clean and dry them completely.
Poke each potato a few times with a fork or sharp knife.
Rub with olive oil and sprinkle with salt.
Place directly on the middle oven rack with a baking sheet on the rack below to catch drips.
Bake for 45-55 minutes or until soft when squeezed with an oven mitt.
Serve hot with your favorite toppings like butter, brown sugar, or cinnamon.