thanksgiving

Making Fluffy Mashed Potatoes? Don’t Peel Before Boiling

updated Oct 1, 2024
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Overhead view of mashed potatoes in a grey bowl, topped with chives, a pat of butter and a spoon in the bowl.
Credit: Photo: Alex Lepe ; Food Stylist: Brett Regot

Among Thanksgiving side dishes, mashed potatoes rank high, so it’s pretty important they taste amazing. There are countless recipes out there, but over the years I’ve found the recipe matters less than the technique. One of the most overlooked techniques that makes a huge difference, especially when making fluffy mashed potatoes, is don’t peel your potatoes before boiling them.

Quick Overview

Why You Shouldn’t Peel Potatoes Before Boiling Them

Starchy varieties of potatoes (which are the best ones for making mashed potatoes) soak up water very easily. Leaving the skin on while they boil protects the potatoes from getting too water-logged, which can affect the texture of mashed potatoes.

Why Peeled Potatoes Don’t Boil as Well

For fluffy mashed potatoes you want to use spuds high in starch, such as Russets. (Waxier potatoes tend to make creamier mashes.) But here’s the thing: Starchy potatoes soak up water more easily. So you should think of the potato’s peel as its protective jacket. If it’s removed before boiling, the flesh will soak up too much of the water in the pot. When you go to mash the potatoes, you’ll end up with a watery, gluey mash. The potatoes will also be less able to absorb all the butter and milk or cream, so they’ll be less rich.

Credit: Joe Lingeman

When and How to Peel Boiled Spuds

There are three ways to deal with your boiled, unpeeled potatoes.

  1. Leave them on. This is obviously the easiest method, and the rustic style of mashed potatoes is one that many people enjoy; the peels contribute great flavor.
  2. Use a ricer. This is the second-easiest method, and has the benefit of making ultra-fluffy mashed potatoes. The skins will come right off in the milling or ricing process: Just drop them into the ricer, squeeze into a bowl, and you’re ready to go!
  3. Use a towel and paring knife. If you’re going to be using a masher and you prefer to not have skins in your mash, you will have to peel the potatoes yourself. But after they’re boiled the skins slip off easily. Hold the hot potatoes in a clean kitchen towel-covered hand, then use a paring knife to scrape or pull off the peel.