Peel and cut potatoes into halves or quarters, keeping them fairly large. Place in a large pot and cover with cold water by 1-2 inches. Add 3 tablespoons kosher salt.
3 pounds potatoes, 3 tablespoons kosher salt
Bring to a boil, then reduce to a simmer and cook for about 15 minutes, or until completely fork-tender. Drain well in a colander and let steam for 1-2 minutes to release excess moisture.
While the potatoes cook, combine butter, milk, nutmeg, salt, and pepper in a small saucepan or microwave-safe container. Heat until butter is melted and mixture is steaming. Keep warm.
1½ cups whole milk, 8 tablespoons unsalted butter, ¼ teaspoon ground nutmeg, 1½ teaspoons kosher salt, ¼ teaspoon black pepper
Working in batches, press the hot potatoes through a potato ricer into a large bowl or back into the dry pot.
Pour about half of the warm butter-milk mixture over the riced potatoes. Gently fold in with a wooden spoon or spatula.
Gradually add more liquid, folding gently, until potatoes reach your desired consistency. Taste and adjust seasonings if needed.
Serve immediately, topped with fresh parsley and extra butter if desired. 😉
Fresh parsley, Extra butter