How to Make It
Preheat oven to 425°F. Liberally prick sweet potatoes all over using a fork. Place sweet potatoes on a baking sheet. Bake in preheated oven until very tender, 45 to 55 minutes. Cut a lengthwise slit down the center of each sweet potato. Pull each sweet potato open, and fluff using a fork. Top evenly with butter pieces; sprinkle with sugar, salt, and pepper.