→ Potatoes
01 - 1.5 lbs Yukon Gold or Russet potatoes, peeled and cut into 1-inch chunks
→ Dairy
02 - 4 tablespoons unsalted butter, plus extra for serving
03 - 1/2 cup whole milk, warmed
→ Seasoning
04 - 1 teaspoon salt, plus additional for boiling water
05 - 1/4 teaspoon freshly ground black pepper