Preheat oven to 400°F (204°C).

Wash the sweet potatoes making sure to remove any dirt from the outer skin.

Use a knife to make even slices, ⅛" - ¼", across the potato making sure not to slice all of the way through to the bottom. If needed, use skewers or something similar on either side of the potato as a guide so you don't slice all of the way down.

Place the prepared potatoes on a lined baking sheet and brush with melted butter then season with salt and pepper.

Bake for 1 hour, or until the center is tender as desired.

Garnish, if desired, and serve with softened butter, sour cream or other potato toppings you might like.