A classic and indulgent side dish featuring fluffy baked potatoes filled with a rich, creamy mixture of cheese, sour cream, and seasonings, then baked again until golden and bubbly.
Preheat oven to 400°F (200°C). Pierce potatoes several times with a fork and place on a baking sheet. Bake for 1 hour, or until tender when pierced with a knife.
Remove potatoes from oven and let cool slightly, about 10 minutes. Cut each potato in half lengthwise. Carefully scoop out the flesh into a large bowl, leaving a thin shell.
Mash the potato flesh with butter until smooth. Stir in sour cream, cheddar cheese, milk, green onions, garlic powder, salt, and pepper until well combined.
Spoon the mixture back into the potato shells, mounding slightly. Sprinkle Parmesan cheese on top of each potato half.
Return potatoes to the baking sheet and bake for 15–20 minutes, or until heated through and tops are golden brown.
Garnish with chopped chives and serve warm.
Notes
For extra richness, add a dollop of cream cheese to the filling mixture. Leftovers can be refrigerated for up to 3 days and reheated in the oven.