I made Ina Garten's flavorful mashed potatoes. From now on, I'll bring this easy side dish to every dinner party.

You only need six ingredients for this simple side dish: kosher salt, potatoes, whole milk, unsalted butter, buttermilk, and black pepper.

Garten recommends using a potato that's easy to boil, such as Yukon Gold. Russets would work well, too: Compared to other potatoes, these varieties contain more starch, which breaks down when mashed into a light and fluffy texture.

Yukons are my personal preference; I've found them to be slightly creamier than other options.

Once I collected my ingredients — and set a big pot of well-salted water to boil on the stove — I started on the prep work.

The first step here is peeling the potatoes, but don't worry about doing it perfectly.

I've found that, as long as the spuds are clean, a few pieces of potato skin in the mix won't really change the dish's quality. Some home chefs might even like to leave a bit of skin on for extra texture.

The potatoes should then be cut into roughly equal-sized pieces so they cook at the same rate.

Garten recommends 1 ½-inch cubes, but it's OK if you're not super precise, since everything will be mashed together later.

Once the water came to a boil on the stove, I added the prepped potatoes and reduced the heat to maintain a gentle simmer with the lid off.

An important part of the recipe is to avoid boiling the potatoes, which can make them turn gummy. Instead, keep the water at a nice simmer until you can easily pierce the spuds with a paring knife. This took me between 10 and 15 minutes.

When they're done, drain the potatoes in the sink and return them to the pot to finish the dish.

Next, I created a mixture of melted butter and whole milk to infuse the cooked potatoes with rich, creamy flavor and texture.

A key step in Garten's recipe is to warm these two ingredients in a small saucepan while the potatoes cook. The butter will melt into the milk, causing an emulsion.

Dry spuds absorb hot liquids better than cold ones, and you'll have an easier time combining the ingredients without any cold lumps of butter.

Just don't let the mixture come to a boil, which can cause the milk to separate from the butter.

When the potatoes are done cooking, strain the water over the sink and return them to the pot. Now, it's time to start mashing.

Garten's recipe calls for using a food mill to break down the potatoes, but I live in a New York City apartment with barely enough room to store a large pot. So, I used a good old-fashioned potato masher.

Once I'd crushed the potatoes into a mostly uniform mush, I added the warm butter and incorporated it with a rubber spatula, per Garten's instructions.

Once you've folded the butter and milk into the potatoes, it's time for the star ingredient: buttermilk.

I halved Garten's recipe, which typically feeds five or six, and decided to add a half cup of buttermilk. At first, I was worried I'd overdone it — my mash looked soupy.

After a little more stirring and time, though, the starchy potatoes absorbed the buttermilk, and I had myself an incredibly light and fluffy mash.

Adding the right amount of salt and pepper is essential for any dish, but mashed potatoes are often tragically overlooked in the seasoning department.

Garten recommends adding another 2 teaspoons of salt and pepper to the mash, and I agree wholeheartedly.

The result is a rich, tangy, and flavorful side dish you don't need to wait for a holiday to make. In my opinion, the buttermilk stole the show: I've found that potatoes can be a bit "blah" when not properly seasoned, and this recipe had a slightly acidic quality that I loved.

I'll be bringing these potatoes to Thanksgiving dinner this year, and every holiday party for the foreseeable future.

This story was originally published on November 20, 2025, and most recently updated on October 22, 2026.