- 1 medium head of garlic
- 4 medium russet (baking) potatoes (2 lb)
- 3 tablespoons unsalted butter, softened
- 1/3 cup sour cream
- 6 oz Cheddar, coarsely grated (1 1/2 cups)
- Preheat oven to 400°F.
- Cut off and discard top third of garlic and wrap remainder in foil. Prick potatoes with a fork and bake with garlic on middle rack of oven 45 minutes. Remove garlic to cool and continue baking potatoes until tender, about 20 minutes more. (Leave oven on.)
- Squeeze garlic cloves into a bowl and discard skins. Stir in butter, sour cream, and 1 cup Cheddar. Cutting lengthwise, remove top fourth of each potato and discard. Leaving 1/4-inch-thick shells, scoop flesh out of potatoes and add to cheese mixture. Mash with a fork to combine. Season with salt and pepper and divide among shells.
- Arrange potatoes in a small baking pan and sprinkle with remaining Cheddar, then bake until heated through, 15 to 20 minutes.