Pierce each sweet potato a few times and bake at 400˚F (200˚C) for 50 minutes, or until soft.
2. Step
Let potatoes cool then cut in half lengthwise.
3. Step
Scoop out potato flesh leaving a thin layer of sweet potato inside, and add flesh to a medium bowl.
4. Step
Place skins back on baking sheet, drizzle with olive oil and bake at 400˚F (200˚C) for 10 minutes.
5. Step
Mash sweet potato flesh with milk, salt, and pepper until smooth and creamy.
6. Step
Remove sweet potato skins from oven, fill each with an equal amount of potato mixture and top with cheese. Bake at 400˚F (200˚C) for 15 minutes until the cheese is melted.
7. Step
Remove skins from oven and top with crumbled bacon. Serve with sour cream and chives.
