3 Ingredient Easy Crockpot Potato Leek Soup Recipe (2024)

I think this recipe is the easiest and healthiest version of potato leek soup in the slow cooker!

I’ve always been a fan of potato and leek soup.

Yet, as I got older (and wiser), I noticed that most restaurant versions of leek and potato soup were thick and creamy, which tasted great, but weren’t so good for the waistline.

I wanted a homemade potato leek soup recipe for the slow cooker.

I was also working nearly full time in mypediatric nutrition private practice, so I also wanted a soup recipe I could make in the morning and come home to, ready to eat.

Yup, a soup I could throw together in the morning and forget about until I returned home.

So I began my research.

3 Ingredient Easy Crockpot Potato Leek Soup Recipe (1)

My Potato-Leek Soup Recipe Criteria:

  • a potato leek soup recipe I could make in the slow cooker or crock pot,
  • no cream (or cream optional),
  • a short list of simple ingredients,
  • and fast and easy to pull together.

Slow Cooker Potato and Leek Soup

What I came up with has stood the test of time and the sometimes picky palates of four kids.

This slow cooker potato leek soup has been made so many times over the last 10 years, I cannot even count.

It is, by far, my most requested soup from my children and one of the easiest soup recipes to make.

I’m not kidding!

My kids request it all the time.

And they would tell you it’s the best soup they’ve eaten!

(And how many kids do you know who like potato leek soup?!)

They also love myRoasted Pork Shoulder in the Oven.

3 Ingredient Easy Crockpot Potato Leek Soup Recipe (2)

An Irresistible Creamy Potato Leek Soup

I’m pretty pleased for the obvious reason: my kids love this leek and potato soup in the slow cooker.

But, I also love it because it’s an easy soup to make and it’s pretty healthy.

Making this soup is a quick production.

Just chop up some Yukon Gold potatoes (or sometimes I use Russet potatoes) and leeks, throw them in the slow cooker with chicken broth (or vegetable broth if you want a potato leek soup vegan option), and walk away.

3 Ingredient Easy Crockpot Potato Leek Soup Recipe (3)

Yup.

Walk. Away.

This hearty soup will need about 6-8 hours to cook on medium-low heat. You could probably take this recipe and prepare it in an instant pot or on the stove top.

When you make this recipe, you’ll find that most of the effort is in rinsing the sliced leeks, which I do quickly in a bath of cold water.

3 Ingredient Easy Crockpot Potato Leek Soup Recipe (4)

Here are some of my other favorite soups I like to make:

3 Ingredient Easy Crockpot Potato Leek Soup Recipe (5)

Simple Soup Ingredients Equals Fast Preparation

This recipe is savory and comforting and only uses three main ingredients: leeks (both the white part of the leeks and the dark green parts), potato, and chicken broth.

Yes, I said that right.

Only 3 ingredients.

After the potato and leeks cook in the broth, I use an immersion blender (a stick blender) to blend it all up. It’s already creamy without milk or cream added to it.

(Before I had an immersion blender, I used my regular blender. Just be careful because it will be very hot!)

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When to Serve Potato Leek Soup

Autumn and winter are the perfect times of year for this flavorful cream of potato leek soup.

Once fall rolls in and the school year and activities are in full swing, you can bet this comfort food will make a regular appearance on my meal plan.

I make it on those really busy nights (read = driving all over town picking up and dropping off kids) when it’s nice to have something ready and waiting.

Or, when I have a full day of kiddos in my office.

What Goes Well with Potato Leek Soup in the Crock Pot?

I always purchase a loaf of crusty bread. French or Italian bread goes well with this soup.

And, I always make a salad and add a bowl of fruit to the meal.

Some of my kids like to add cheddar cheese or sour cream on top, and I under-season with salt, so you may want to add a pinch with some black pepper, too.

This recipe makes a big batch, enough to feed my family of six. Leftover soup is delicious the next day!

What’s your favorite soup in the slow cooker?

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Slow Cooker Potato Leek Soup

Yield: 6 servings

Prep Time: 15 minutes

Cook Time: 6 hours

Total Time: 6 hours 15 minutes

A low fat, hearty and delicious Potato Leek Soup prepared in the slow cooker.

Ingredients

  • 4 medium to large potatoes, peeled (I peel, but this is optional)
  • 2-3 leeks, sliced, white and light green parts only
  • 32 oz. chicken broth
  • kosher salt
  • pepper
  • Half-n-Half cream (optional)

Instructions

Rinse, peel and cube the potatoes into 1" pieces.

Slice the leeks and place in a bowl of water; swish them around to dislodge dirt and sand; let stand for 2-3 minutes (dirt/sand will sink to the bottom of the bowl).

Add potatoes, leeks and chicken broth to the crock pot (in this order).

Season with salt and pepper.

Cook on low heat for 6 hours.

Use an immersion blender or traditional blender to puree the soup.

Check flavor and season to taste.

Optional: If you like a creamier version, stir in 2 ounces of half-n-half cream.

Nutrition Information:

Yield: 12Serving Size: 1
Amount Per Serving:Calories: 70Total Fat: 0gSaturated Fat: 0gTrans Fat: 0gUnsaturated Fat: 0gCholesterol: 2mgSodium: 344mgCarbohydrates: 15gFiber: 2gSugar: 2gProtein: 2g

This is an estimation of nutritional content.

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3 Ingredient Easy Crockpot Potato Leek Soup Recipe (8)

This post was originally published in 2013 | Updated in September 2020

3 Ingredient Easy Crockpot Potato Leek Soup Recipe (2024)

FAQs

Why is my potato leek soup gummy? ›

Why is my potato leek soup gummy? Potatoes should be diced in similar size so they cook evenly, but don't drive yourself crazy getting them teeny-tiny. If they're too small, you risk the potatoes releasing too much starch, which can make the soup gummy when pureed.

Why is my leek and potato soup bland? ›

Although leeks are known for its powerful taste, your potato and leek soup can occasionally come out bland. 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 can I thicken my 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 to make leek and potato soup Mary Berry? ›

Mary Berry's Potato Leek Soup
  1. Melt butter in a large saucepan over medium heat. Add leeks, and cook, covered, stirring often, until softened, 4 to 6 minutes. ...
  2. Stir in broth, salt and pepper. ...
  3. Carefully transfer soup to a blender. ...
  4. Ladle soup into individual bowls.
Nov 27, 2016

Why isn't my potato soup creamy? ›

Why isn't my potato soup creamy? Most creamy soups require you to add dairy of some sort into it. If you're finding your soup is too thin adding milk, add in cream instead, or whole milk.

Why does my leek and potato soup taste bitter? ›

Add the leeks to the pot, lowering the heat if necessary and saute for 10-15 minutes , or until soft and translucent. Be careful not to burn the leeks, as they will impart a bitter taste to the soup. The excess liquid from cleaning the leeks should help prevent any burning.

How do I increase the depth of flavor in soup? ›

Add acidic ingredients.

Foods that have a great deal of acidity, like lemon juice, vinegar, white wine, and tomato puree, can help liven up the flavor of bland-tasting bone and other broths. "The acidity of these ingredients works to complement and enhance the broth's flavors, not mask it.

How do you fix gluey potato leek soup? ›

It turns out, then, that contrary to internet opinion, it is possible to redeem your potato leek soup if somehow it becomes gluey. Ladle some into a freezer bag, freeze it flat, thaw it, and pour off the water.

Why does my potato soup taste gritty? ›

Russet potatoes, as a member of the starchy/floury potato family, are inherently grainy. Using them in soup will result in an unpleasant gritty texture. When making potato soup, be sure to reach for a waxy variety such as fingerling potatoes, red potatoes, or baby potatoesto get a smoother texture.

How do you thicken potato soup in the crockpot? ›

Add a slurry at the end.

A slurry is a mixture of flour and water, whisked together until smooth and added towards the end of cooking; it's a super-simple way to thicken any soup. For slow cooker soups, add your slurry with at least 30 minutes of cook time left so that the raw flour can cook and thicken the 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.

Can you use sour cream to thicken potato soup? ›

Another option for thickening soup is by using dairy like sour cream or yogurt. Start with a small dollop and stir before checking the consistency and adding more. We recommend using plain yogurt so you don't alter the taste of the soup. You can also use cream if you prefer.

What is potato leek soup made of? ›

To make this soup, cook chopped leeks in a little butter, then add diced potatoes, stock, and herbs. Bring it all to a simmer, and cook until the potatoes are done, about 20 minutes. Purée the soup using a blender to get a creamy consistency.

Should leeks be sauteed before adding to soup? ›

Sautéing leeks before adding them to the soup can enhance their flavor and bring out their sweetness. Heat some oil or butter in a pan, then add the sliced leeks. Cook them over medium heat until they become soft and slightly caramelized. This step adds depth of flavor to your soup.

How do you fix gummy potato leek soup? ›

It turns out, then, that contrary to internet opinion, it is possible to redeem your potato leek soup if somehow it becomes gluey. Ladle some into a freezer bag, freeze it flat, thaw it, and pour off the water.

How do you make potato soup less gummy? ›

It is important that the potatoes not be too finely chopped before cooking. If they are, too much starch will be released into the broth and a gummy texture will result.

Why is my potato soup gluey? ›

If you've ever tried potato leek soup and found it to have a gluey texture, it's because the potatoes released too much starch from being over handled. This is unfortunately easy to do with a food processor or blender (heck, it can even happen when making mashed potatoes, which is why I avoid using an electric mixer).

How do you fix gooey potato soup? ›

You need to dilute by a five parts or so Take a quarter of the soup (a cup full) and dilute it with 5 cups of ideally milk, or otherwise stock or water. You will also need quite a lot of salt and pepper - taste as you go. Reheat, but don't boil if you can avoid it.

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