Loaded Sweet Potato Skins

Bahan-bahan (8 porsi)

• 4 medium sweet potatoes
• 1 Tablespoon olive oil
• 1/4 cup milk*
• 1/4 teaspoon salt
• ground black pepper, to taste
• 1 cup shredded cheese (I use half sharp cheddar and half mozzarella)
• 4 strips bacon, cooked until crispy, and crumbled
• for serving: sour cream and chopped chives