The 1-Ingredient Upgrade for the Fluffiest Mashed Potatoes (It Costs Zero Dollars) (2024)

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Getting fluffy, smooth mashed potatoes is easier than you think.

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Molly Adams

The 1-Ingredient Upgrade for the Fluffiest Mashed Potatoes (It Costs Zero Dollars) (1)

Molly Adams

A self-proclaimed food-pusher, Molly Adams has been cooking for the loved ones for as long as she can remember. She is a classically-trained chef with a background in catering, private cheffing and food media. Her experience includes recipe development, recipe testing and food writing.

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Updated November 17, 2023

The 1-Ingredient Upgrade for the Fluffiest Mashed Potatoes (It Costs Zero Dollars) (2)

My ideal mashed potatoes are perfectly seasoned, light, super fluffy, and free of lumps. I take making them pretty seriously because they're one of my favorite foods ever. A ricer must be used, butter should be added with abandon, and if the dairy is anything lighter than heavy cream, I don’t want the mashed potatoes.

I used to attribute the success of making mashed potatoes to the type of potato used, how long they were cooked, and how they were mashed. While all of these things are important, a few years ago I learned a ground-breaking trick from cookbook author J. Kenji López-Alt that trumps all other factors. What if I told you the key to the fluffiest mashed potatoes is one ingredient that also happened to be free?

The 1-Ingredient Upgrade for the Fluffiest Mashed Potatoes (It Costs Zero Dollars) (3)

It’s nothing fancy like cultured butter or crème fraîche—although neither could hurt the cause! The secret ingredient is just ice-cold water.

The 1-Ingredient Upgrade for the Fluffiest Mashed Potatoes (It Costs Zero Dollars) (4)

If you’ve ever made French fries from scratch, you may be familiar with soaking the cut potatoes in cold water to pull out excess starch. This gives you French fries that are crisp and golden, while the insides are light and fluffy.

The same trick applies to mashed potatoes—it's so obvious I wish I would have thought of it myself! You soak the potatoes in iced water before they are cooked. This eliminates much of the starches in the potatoes, resulting in a super light and fluffy mash.

It's also like when you make rice. The key to fluffy rice is to rinse off as much starch as possible. That way the grains don't bloat and aren't drawn together by the excess starch into clumpy, mushy lumps. Also, just like when you rinse rice, you can see the starch leaching out of the potatoes as they soak—you'll see the water turn white.

Here's what I do to rinse the starch off the potatoes:

Fill a large bowl with cold water and a handful of ice. Add the peeled potatoes to the water and let them sit for at least 30 minutes, though one hour is ideal. Then carefully remove the potatoes with your hands or a spider strainer so that the starches pooled in the bottom of the bowl aren't disturbed.

Boil the potatoes until they are tender, proceed with your favorite mashed potato recipe, and you'll notice that they are way fluffier than when you made them without soaking.

I take this one step further: After draining the cooked potatoes into a colander, I rinse them under cold running water to knock off the starches on the surface. Since this will cool the potatoes and add some moisture, I return them to the pot and steam them for a minute or two over low heat. This brings the temperature back up and cooks off any added water.

The 1-Ingredient Upgrade for the Fluffiest Mashed Potatoes (It Costs Zero Dollars) (5)

Mashed Potatoes Rules I Live By

  • Start the potatoes in cold water. Lumpy mashed potatoes are usually a direct result of potatoes that were not cooked evenly. When you start potatoes in warm water, the outsides cook faster than the insides, leading to dreaded lumps. Start them in cold water. The potatoes should be covered with water by at least an inch.
  • Use a ricer! Be very wary of any potato recipe that has you use a blender or food processor. The fastest way to make potatoes gummy is to process them with lots of power. I’m not big on single-use kitchen tools, but a ricer is the only tool that will give you fluffy, smooth mashed potatoes.
  • Don’t shy away from salt. Like pasta, it’s hard to season potatoes after they have been cooked. You want the cooking water to taste like the sea; this will ensure your spuds have some serious flavor. Adding salt after they are cooked will just make the mashed potatoes taste salty, not well-seasoned.
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The 1-Ingredient Upgrade for the Fluffiest Mashed Potatoes (It Costs Zero Dollars) (2024)

FAQs

The 1-Ingredient Upgrade for the Fluffiest Mashed Potatoes (It Costs Zero Dollars)? ›

The secret ingredient is just ice-cold water.

How do you upgrade mashed potatoes? ›

Infusing milk or cream with herbs and garlic is a simple but effective way to make a potent flavor difference in mashed potatoes. Combine your preferred dairy with butter in a small saucepan. Add five or six cloves of garlic, cut in half, along with a dozen sprigs of fresh thyme or rosemary.

When making mashed potatoes What is the trick to making sure they are smooth and have less lumps? ›

Unwanted lumps are a result of mashing undercooked potatoes, so the key to avoiding lumps is cooking the potatoes correctly. Make sure that your potatoes are all cut roughly the same size so they cook at the same rate. And unlike pasta, potatoes should be started in cold water.

What is the best type of potato used in the production of mashed potato? ›

The best potatoes for mashed potatoes are a starchy varieties like russet, Idaho or Yukon gold. Starchy potatoes are best for mashed potatoes because they have a fluffy, almost airy texture that breaks down easily.

How do you make mashed potatoes fluffy again? ›

As already discussed, pastiness is caused by too much potato starch being worked into the mashed potatoes. The main way we combat this problem is by rinsing away starch, both before and after cooking potatoes for fluffy mashed potatoes. Rinsing off starch means that there is less of it that can end up in the dish.

What is a good thickener for mashed potatoes? ›

You can use what you have on hand: Flour, cornstarch, or powdered milk are all solid options that are probably already in your pantry. Potato flour and potato starch would work as well. Stir in the thickening agent gradually, about a tablespoon at a time, until the potatoes have reached your desired consistency.

Why are my mashed potatoes not fluffy? ›

The Mistake: Using the Wrong Kind of Potato

Thick-skinned varieties like russets will give you the fluffiest results. Steer clear of waxy red-skinned potatoes, which turn gluey when mashed.

Why add baking soda to mashed potatoes? ›

Just a pinch of baking soda is all you need to create mashed potatoes as soft as clouds. When you add baking soda, it reacts with the heat of the dish and the acid in the milk or cream to create small air pockets throughout the mash. These air bubbles translate to light and airy bites. Yum!

How to avoid lumps in mashed potatoes? ›

I use a ricer or food mill, depending on the quantity I'm making. It gives you smooth, evenly mashed potatoes every time. If you're using a potato masher or a fork, you just need to keep mashing until you've gotten rid of the lumps,adding butter and milk to taste.

What potato is the creamiest? ›

Yukon Gold potatoes are the BA team's top pick for classic mashed potatoes. With gold right there in their name, there is no arguing that they're the (ahem!) gold standard for a mash with a creamy, rich texture.

Can you soak potatoes in water before making mashed potatoes? ›

You soak the potatoes in iced water before they are cooked. This eliminates much of the starches in the potatoes, resulting in a super light and fluffy mash. It's also like when you make rice.

Do you peel potatoes before or after boiling for mashed potatoes? ›

Not only do unpeeled potatoes absorb less water and retain more vitamins and nutrients, the peels are usually easier to remove after cooking—just make sure you scrub the skin well first if this is the route you plan to take. That said, you can totally peel the potatoes first if that's what you're most comfortable with.

How to spruce up instant mashed potatoes? ›

Those same add-ins—chopped fresh herbs like chives or parsley, chopped cooked bacon, crumbled blue cheese, roasted garlic cloves and so on—will enhance the instant variety as well. Butter (not margarine) is a must, as is sour cream.

What to add to mashed potatoes that are bland? ›

Taste before serving: I like to add a scoop of Better then Bouillon chicken base for great flavor, or add more salt and pepper, sour cream, or melted butter, until you reach the flavor you want. nt to add more salt and pepper, or an extra scoop of sour cream, or a little melted butter.

What toppings go on mashed potatoes? ›

Sliced green onions, roasted red peppers, olive tapenade, caramelized onions, bacon jam, crème fraîche, brown gravy, pulled pork, pesto, sautéed mushrooms, Parmesan cheese, roasted garlic, flavored butters, fresh herbs, and more are all great options when it comes to topping warm mashed potatoes.

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