Medium sized sweet potatoespreferably all about the same size*
Instructions
1. Preheat oven to 350 degrees Fahrenheit
2. Rinse the sweet potatoes, then prick them all over with a sharp paring knife or the times of a fork.
3. Place sweet potatoes on a parchment lined sheet pan, and put into the oven. Check sweet potatoes after 45 minutes. If a knife slides into them easily, they're finished. If they are still a bit hard, keep cooking for another 10-20 minutes, depending on the size of your potatoes.