Preheat oven to 400Make sure rack is in middle position.

Scrub sweet potatoes gently to remove excess dirt.

Using a fork, prick the potato skins all over several times.

Place potatoes directly on the oven rack, leaving space between each potato.

Place a cookie sheet on the rack below sweet potatoes so catch any drips.

Roast for 45-50 minutes, rotating the potatoes 20 minutes in.

Remove from oven and allow to cool slightly before serving.