If you’re searching for the ultimate bowl of comfort, the 4 Ingredient Potato Soup is bound to become your new go-to. With just potatoes, onions, butter, and milk, this soup delivers creamy goodness in minutes—no fancy shopping trips required, just straightforward, classic flavors that nourish and satisfy. Whether you’re short on time or ingredients, it’s astonishing how a few humble staples can transform into a rich, warming meal that tastes like home. If you love cozy, easy recipes, you’ll want to keep this 4 Ingredient Potato Soup in regular rotation.

4 Ingredient Potato Soup Recipe - Recipe Image

Ingredients You’ll Need

How wonderful is it when dinner only asks for four simple ingredients—and delivers so much in return? Each one plays a key role: the potatoes create body and substance, the onions build gentle sweetness, the butter offers luscious richness, and the milk ties everything together into creamy perfection.

Russet potatoes: These starchy potatoes break down beautifully to give your 4 Ingredient Potato Soup a dreamy, velvety texture.
Onion: A single onion adds subtle depth and sweetness; chop it small for even cooking and smooth blending.
Butter: Four tablespoons make the soup silky and flavorful—don’t skimp here, as it’s key for richness.
Milk: Use whole or 2% milk for the creamiest results, bringing everything together in this uncomplicated recipe.
Salt and pepper: Add to taste for balance and a final pop of flavor that ties it all together.

How to Make 4 Ingredient Potato Soup

Step 1: Prepare the Vegetables

Start by peeling your potatoes and cutting them into uniform one-inch cubes—this helps them cook evenly and mash easily. Chop your onion into small pieces as well. The simple prep is part of 4 Ingredient Potato Soup’s charm: no fancy knife skills needed, just honest kitchen work.

Step 2: Cook Potatoes and Onions

Add the potatoes and onions to a large Dutch oven or stock pot. Pour in just enough cold water to cover the veggies—too much water will make the soup thin. Bring to a boil over medium-high heat and cook until the potatoes are so soft they easily fall apart with a fork, usually about 20 minutes. This stage coaxes out all the potato’s natural starches, creating an ultra-smooth soup base.

Step 3: Drain and Mash

Remove the pot from the heat and carefully drain off most of the water, leaving about a cup of liquid behind—this keeps the soup luscious instead of stodgy. Grab a potato masher and begin mashing the potatoes and onions right in the pot. Stop once the mixture is mostly smooth but still has some texture, unless you prefer it velvety—then reach for your immersion blender and blend away! This step sets 4 Ingredient Potato Soup apart: you control the consistency.

Step 4: Add Butter and Milk

Next, stir in the butter and pour in the milk. Watch as your soup transforms from thick mash to a beautiful, creamy liquid. Return the pot to the stove, set it on medium heat, and cook for 6 to 7 more minutes, stirring often. This helps everything meld together and become silky. When it’s just right, taste and season with salt and pepper.

Step 5: Rest and Serve

Turn off the heat and let the soup sit for five to ten minutes—this little break allows flavors to mingle and the soup to cool slightly, reaching the perfect temperature for enjoying your first spoonful of 4 Ingredient Potato Soup.

How to Serve 4 Ingredient Potato Soup

Garnishes

This soup is a blank canvas for whatever extras you crave. A sprinkle of shredded cheddar, snips of green onion, or fresh cracked pepper all sing atop a steaming bowl of 4 Ingredient Potato Soup. Sometimes, I love a pinch of paprika or a swirl of sour cream to dress it up.

Side Dishes

The creamy texture of 4 Ingredient Potato Soup pairs fabulously with crusty bread, warm rolls, or even a sharp green salad. If you’re after extra coziness, serve it alongside a grilled cheese sandwich or buttered toast for the ultimate comfort meal.

Creative Ways to Present

Try serving the soup in mugs for easy sipping, or ladle it into shallow bowls and top artistically with your favorite garnish. For a dinner party twist, offer a toppings bar—think bacon bits, chives, diced ham, or roasted garlic—so everyone can make the 4 Ingredient Potato Soup their own.

Make Ahead and Storage

Storing Leftovers

Got leftovers? Lucky you! Allow the soup to cool completely before transferring to an airtight container. It keeps beautifully in the fridge for up to four days, making speedy lunches or simple suppers a breeze.

Freezing

If you’d like to freeze your 4 Ingredient Potato Soup, it can last up to three months in the freezer. Just know that potato soups can sometimes turn a little grainy upon thawing. For best results, freeze in individual portions so you can take out exactly what you need.

Reheating

Reheating is simple: warm the soup in a saucepan over medium-low heat, stirring often. If it’s too thick after chilling, add a splash of milk to loosen it up. You can also microwave in short bursts, stirring between each, until heated through.

FAQs

Can I use a different type of potato?

Absolutely! While russet potatoes make the soup extra creamy, Yukon Gold or even red potatoes work well too, though they might give a chunkier texture.

Is it okay to use non-dairy milk?

Yes, you can swap in your favorite unsweetened non-dairy milk. Oat milk and cashew milk both blend well, though the flavor and richness may change slightly from traditional 4 Ingredient Potato Soup.

How can I make this soup even heartier?

Try stirring in cooked bacon, ham, or shredded rotisserie chicken at the end. You can also toss in some frozen corn or peas for a veggie boost.

Do I have to use an immersion blender?

No blender is necessary if you like some texture—but if you crave ultra-smooth potato soup, an immersion blender or regular blender will make your 4 Ingredient Potato Soup silkier. Just be careful blending hot liquids!

What’s the best way to prevent the soup from becoming gluey?

Be gentle when mashing or blending, and avoid overworking the potatoes. Keeping some texture adds charm and makes sure your 4 Ingredient Potato Soup stays creamy, not gummy.

Final Thoughts

There’s just something magical about turning four common kitchen staples into something as comforting and delicious as 4 Ingredient Potato Soup. I hope you’ll give it a try next time you’re craving a hug in a bowl—sharing it with friends and family only makes it better!