From My Family Table
If you don’t already own a good old-fashioned food mill, now’s the time to go get one. Potato ricers work fine, but they take so much time to refill with potatoes, the mixture cools down to the point that it is easy to overwork the potatoes as you add the butter. A food mill makes mashed potatoes a cinch and also comes in handy when making tomato sauces.
2 pounds Yukon Gold potatoes, peeled and cut into 1-inch dice
1 pound unsalted butter, diced
1. Place the potatoes into a large pot and cover with 2 inches of cold, salted water. Cover and bring the pot to a boil, lower the heat and simmer for about 30 minutes. Once the potatoes are fork tender, remove from the heat and drain into a colander.
2. Using a potato ricer or preferably, a food mill, mash the potatoes (while hot) back into the pot. Turn the heat to medium low and gently fold the butter into the mashed potatoes. Once the butter is incorporated, serve immediately. Season with salt.