Potato Leek Soup Recipe (2024)

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Potato Leek Soup Recipe (1)

I am sharing a thick and hearty potato leek soup recipe that is simple to prepare and loved by everyone. My mom’s famous potato leek soup is comfort in a bowl.

I turned on the news this morning and found out that Spring is about to officially begin. But rather than jump into the spring recipes, I’m going to help you savor these last couple days of winter by providing the the ultimate comforting soup recipe: a thick and hearty potato leek soup.

Over the years, I have made and shared this particular recipe more than any other. So, of course, friends and family have been asking why I’ve never posted it on Pinch My Salt.

That’s a very good question. The answer is simple: this is my mom’s soup.

What does that mean? Well, it’s just hard to write about a recipe that is so intertwined with memories of the person who meant the most to me and who isn’t here to make it anymore.

I can make the soup, eat the soup, share the soup, but just haven’t quite been able to write about it without the tears starting up.

But hearty soup season is almost over so I got out the box of tissue, pulled out the 25-year-old recipe card, and I’m here to share this easy and wonderful potato leek soup recipe that has the power to transport me back to my childhood with just one bite.

Potato Leek Soup Recipe (2)

You’ll find the printable recipe at the very end of the post. Here is a photo tutorial to show you how easy it is to make this potato leek soup.

Potato Leek Soup Recipe (3)

First of all, I’ll let you in on a little secret. For years I always sliced my potatoes by hand until I realized that my new food processor has a large enough feed tube to fit one or two whole potatoes at a time!

Now I always slice my potatoes in my Cuisinart food processor using the slicing blade. If you have one that will work, great! If not, just slice them by hand using a sharp knife to about 1/4 inch thick. It really doesn’t take as long as you think!

Potato Leek Soup Recipe (4)

Start the soup by sauteeing the leeks and onions in butter until they are limp and just starting to brown.

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Next, add all of the potatoes that you worked so hard to slice (unless you’re a cheater like me).

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After adding potatoes, pour in enough chicken broth to just barely cover them. The amount you use depends on the size and amount of potatoes you sliced. Two 14 oz. cans of broth is average but use more if you need it.

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As you can see the level of liquid is just even with the potatoes. If I push down on the potatoes with the masher, they will be completely submerged.

This amount of liquid results in a very thick soup. The soup can always be thinned at the end with some extra broth if desired.

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It doesn’t take long for the potatoes to cook and you can probably start mashing within 10 minutes or so. The amount of mashing you do is entirely up to you.

If you like chunkier soups, leave the potatoes a bit chunky. If you want a smooth soup, mash for a longer time. If you prefer a completely smooth soup, peel the potatoes before slicing and puree soup with a hand blender.

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When the soup has reached your desired consistency, add some heavy cream. My mom’s original recipe says 1 – 2 cups of cream but I never use more than one cup.

I think you lose a lot of flavor by adding more cream. But, again, it’s up to you. Make sure to season well with salt and pepper after stirring in the cream.

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This is what my soup looks like when it’s ready to eat. As you can see, I like a slightly chunky consistency but no large pieces of potato.

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Enjoy! I really hope this potato leek soup becomes a family favorite and that the recipe continues to be shared.

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  • Smoky Black Eyed Peas with Bacon
  • Macaroni and Cheese with Bacon, Leeks, and Thyme
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Potato Leek Soup Recipe (12)

Yield: 6 servings

Prep Time: 20 minutes

Cook Time: 45 minutes

Total Time: 1 hour 5 minutes

Ingredients

  • 3 tablespoons butter
  • 3 leeks, thinly sliced*
  • 1 medium or large onion, chopped
  • 6 russet potatoes, thinly sliced**
  • 3 1/2 cups chicken broth (or enough to barely cover potatoes)
  • 1 cup heavy cream
  • salt to taste
  • fresh ground black pepper to taste

Instructions

    1. Melt butter in a large saucepan over medium heat then add onions and leeks. Cook, stirring, until onions are limp and just slightly brown.
    2. Add sliced potatoes to saucepan then pour in enough chicken broth to just barely cover the potatoes. Bring to a boil then turn down heat a bit and let cook until potatoes are tender.
    3. Using a potato masher, mash and stir potatoes until desired consistency is reached. As you mash the potatoes and the soup thickens, turn down heat and stir frequently with a large spoon to prevent scorching on the bottom.
    4. Add one cup of heavy cream (or more if you desire) and salt and black pepper to taste. Cook 15 minutes more over low heat, stirring frequently, then remove from heat and serve.

Notes

*Make sure to clean leeks thoroughly and slice only the white and light green part of the leeks.

**You don’t need to peel the potatoes as the peels add to the rustic texture of the soup. But make sure to scrub them thoroughly and remove any obvious blemishes before slicing.

Although we always make it with chicken broth, this can easily become a vegetarian soup by simply using vegetable broth instead.

Potato Leek Soup Recipe (2024)

FAQs

Why is my leek and potato soup tasteless? ›

The reasons are usually two: you didn't season your soup at all, worrying it might be too salty because of the leeks; or you added to much water for the stock.

How do you make potato leek soup less bland? ›

Most likely, your potato leek soup tastes bland because you haven't added enough salt throughout the cooking process. Potatoes LOVE salt at every opportunity. Season them before roasting to really bring out their flavor. If you season only at the end, your soup will just taste salty — not flavorful.

Why is my potato leek soup gummy? ›

Potatoes are delicate in that they can be over mashed and over blended. This causes their starches to be released and turn into a gluey, gummy mess. Blend until just smooth, then stop.

How to thicken up leek and potato soup? ›

Add flour or cornflour

Put a tablespoon of either into a small bowl and stir in 2-3 tbsp of the soup until you have a smooth mixture. Stir this back into the soup and bring it to a simmer. Cook for a few minutes to allow the starch granules to burst to thicken, and to cook out any flour flavour.

How can I deepen my soup flavor? ›

"If your broth is lacking in savory richness, try adding roasted onion, tomato paste, mushrooms, seaweed, soy sauce, or miso. These ingredients add umami flavor and depth to broth," she says. The choice of ingredient depends on the recipe, though.

How do I add flavor to bland potato soup? ›

Once the potatoes are nice and soft, stir in the cheddar cheese and Greek yogurt (or sour cream), salt, pepper and cooked bacon bits. Taste and season with extra salt and pepper, if needed.

What is the best thickening agent for potato soup? ›

Combine cornstarch and a little bit of water—or the chicken stock from the soup—in a small bowl. With the soup simmering over medium-low heat, whisk in the slurry. The soup should start to thicken almost immediately.

How to stop leek and potato soup from going gloopy? ›

Potato-Leek Soup v2.

For an extra-smooth soup, press it through a chinois or a fine mesh strainer using the bottom of a ladle. Sure, it's the gluier than its pressed brother, but as I said, sometimes that really doesn't bother me.

How do you keep potatoes from getting mushy in potato soup? ›

Cut the potatoes into rissolettes and blanche them (i.e. cook them briefly, not to full doneness). Use the water you used in the soup and put the potatoes back in when you go to warm the soup again for serving. Since they're cut fairly small, they should be just about done without being mushy when you go to eat.

Why has my leek and potato soup gone brown? ›

It looks as though some of your potatoes might have got a bit scorched. Did you fry them off before adding the liquid? The colour from the browned potatoes could be what is turning it brown.

Can I add flour to my potato soup to make it thicker? ›

By mixing the flour or cornstarch with cool water before adding it to the soup, you'll keep it from clumping up when it hits the hot liquid. This will thicken about 1 qt (0.95 L) of soup.

Will cream cheese thicken potato soup? ›

Cream cheese can be a delicious and tangy thickener for mashed potatoes so it stands to reason that it can also be used to add body to your favorite silky potato soup recipes — right? The answer is yes. It only works well if you do it carefully, though.

Why does my potato soup taste bland? ›

Not Adding Acid. If a soup is tasting bland in the bowl, consider adding acid rather than salt. A squeeze of lemon or lime, or a dash of yogurt or sour cream can add brightness to the bowl.

How do you fix soup that has no flavor? ›

Perk up a Bland Soup With Simple Pantry Staples

Add a splash of vinegar (any kind!), or a squeeze of citrus. Chances are, you could use a little more salt. Go ahead—it's ok. Salt perks up flat flavors and helps balance out bitter-tasting ingredients.

How do you get the depth of Flavour in vegetable soup? ›

The first is to caramelize the vegetables, either in your soup pot or in the oven, to sweeten them and condense their juices. Next, add plenty of aromatics to the pot — herbs, spices, garlic, onions and the like — and let everything simmer for a long time to blend the flavors.

How do you make potato and leek soup less salty? ›

In addition to potatoes, you can use other starchy vegetables like carrots or parsnips to absorb excess salt. Dairy products like milk, cream, yogurt, or sour cream can help balance out the saltiness of a soup or stew.

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