INGREDIENTS
6
slices bacon, or 3 tablespoons unsalted butter
1
bunch scallions, white and green parts thinly sliced separately
4
garlic cloves, minced
2 lb
russet potatoes, peeled and cut into 1/2-inch cubes, large skins reserved
6 cups
whole milk
Kosher salt
1 tbsp
extra-virgin olive oil, plus more as needed
Black pepper
1/8 tsp
cayenne
1/8 tsp
garlic powder
3/4 cup
sour cream, plus more for serving
3/4 cup
freshly grated Cheddar (about 3 ounces), plus more for serving