Slow Cooker Leek and Potato Soup

This hearty Slow Cooker Leek and Potato Soup is perfect for a cozy winter dinner. Also called potage parmentier and vichyssoise, it is a nutritious vegetarian soup that the whole family can enjoy.

EASY SLOW COOKER VICHYSSOISE

Tender potatoes and flavorful leeks are blended up to a creamy and dreamy perfection to make this amazing Potato Leek Soup. This soup makes for a perfect light lunch, or works great as a starter to a fabulous dinner. The French sure do know how to make a darn good soup! 

Can I brag for a sec?! This soup right here? It was given 5 stars by the Oprah.com team about 5 or 6 years ago. Yeppers it was! 🙌

That was one fantabulous day in the life of Diethood. I was just getting started with this whole recipe-blog deal, and that review meant so much to me! STILL DOES!  

Lemme tell you though. This soup is rich, a bit creamy, a bit chunky, a whole lot of wonderful, and is also great chilled! The chilled version of it is called Vichyssoise. So fancy. 😊

I mean, really. The flavor, the texture, and everything all together is like getting a hug from a soup bowl. 

HOW TO MAKE VICHYSSOISE SOUP

I want to call this back-to-basics-recipe because it’s very simple and easy going, and you might already have all the ingredients hiding in the pantry. Best part is that you can prep this in the morning and leave it to cook for the whole day. 

By the way, you only need carrots, celery, garlic, leeks, potatoes, fresh thyme, salt, pepper, and butter. AND a Slow Cooker. 

1. Cut the potatoes and the leeks. Leeks may need to be washed before cutting because dirt likes to hide in places you can’t see. Just cut off the dark green part, then cut the leeks in half, lengthwise, and rinse under cold water. Pat dry with paper towels and chop them up.
2. Put potatoes and leeks in the slow cooker and set aside.
3. Combine sliced carrots and celery in a skillet and sauté for 4 minutes; stir in some garlic and transfer it all to the slow cooker.
4. Stir in vegetable broth; add fresh thyme sprigs and butter.
5. Close with the lid and cook on LOW for 6 to 8 hours, or until potatoes are very tender. You can also cook it on HIGH for 4 to 5 hours.
6. When done, blend the soup with an immersion blender. If you only have a traditional blender, blend in batches. I also advise not to blend it on high speed; pulse it so that you have more control of the texture in the end.

The finishing touch should involve some heavy cream – totally optional, but totally necessary. 😉

HOW LONG DOES POTATO LEEK SOUP LAST IN THE FRIDGE?

• Store soup in an airtight container and keep in the fridge for up to 3 days.

CAN YOU FREEZE POTATO LEEK SOUP?

• YES! Potato Leek Soup can be frozen for 3 months, but don’t add the cream if you plan to freeze it. 

Right now, at this very moment, I am making this Slow Cooker Leek and Potato Soup, again. We have had this soup twice in the last month. It’s what happens when you clear out your local Farmer’s Market leeks supply. 😃

In fact, our Thanksgiving dinner either includes this Leek and Potato Soup or my Asparagus Soup. There’s an idea for ya! 👊 

Now go and start peeling some potatoes so you can serve dinner by 6-ish tonight.

MORE EASY SOUP RECIPES

• Slow Cooker French Onion Soup
• Lighter Loaded Baked Potato Soup
• Ham and Sweet Potato Soup
• Creamy Carrot Soup

ENJOY!

TOOLS USED IN THIS RECIPE

12" Stone Earth Frying Pan by Ozeri, with 100% APEO & PFOA-Free Stone-Derived...

Crock-Pot SCR503SP 5-Quart Smudgeproof Round Manual Slow Cooker with Dipper,...

MOSFiATA 8" Super Sharp Professional Chef's Knife with Finger Guard and Knife...

4.91 from 10 votes

Print

Slow Cooker Leek and Potato Soup

Prep Time

10 mins

Cook Time

8 hrs

Total Time

8 hrs 10 mins

 

Tender potatoes and flavorful leeks are blended up to a creamy and dreamy perfection to make this amazing Potato Leek Soup. 

Course: Soup

Cuisine: French

Servings: 8

Calories: 159 kcal

Author: Katerina | Diethood

Ingredients

• 2 pounds Yukon Gold Potatoes, peeled and quartered
• 3 leeks, white and light green parts only,  roughly chopped
• 1 tablespoon olive oil
• 1 large carrot, sliced
• 3 celery ribs, sliced
• 3 cloves garlic, minced
• 1 teaspoon salt, or to taste
• 1/4 teaspoon fresh ground pepper, or to taste
• 6 to 7 cups low sodium vegetable broth
• 2 tablespoons butter
• 3 sprigs fresh thyme
• 1/2 cup heavy cream, optional
• chopped fresh parsley, for garnish, optional
• fresh thyme leaves, for garnish, optional

Instructions

1. Place chopped potatoes and leeks in the slow cooker and set aside.

2. Heat olive oil in a skillet and add carrots and celery; cook for 4 minutes.

3. Stir in garlic and cook for 20 seconds.

4. Add carrot mixture to the slow cooker.

5. Stir in vegetable broth; add butter and thyme sprigs.

6. Close with the lid and cook on LOW for 6 to 8 hours, or until potatoes are very tender. You can also cook it on HIGH for 4 to 5 hours.

7. When done, remove the thyme sprigs and, if using, stir in the heavy cream.

8. Blend the soup with an immersion blender. If you only have a traditional blender, blend it in batches.

9. Taste for seasonings and adjust accordingly.

10. If soup is too thick, add water or vegetable broth to thin it out.

11. Ladle soup into bowls.

12. Garnish with parsley and fresh thyme leaves.

13. Serve.

Recipe Notes

WW FREESTYLE POINTS: 4

TO FREEZE

Potato Leek Soup can be frozen for 3 months, but don’t add the cream if you plan to freeze it. 

TO REHEAT

Defrost the soup in the refrigerator overnight; reheat it on the stovetop over medium heat until hot. Once heated through, stir in heavy cream and bring to a simmer; serve.

Nutrition Facts

Slow Cooker Leek and Potato Soup

Amount Per Serving (1 cup)

Calories 159 Calories from Fat 45

% Daily Value*

Fat 5g8%

Saturated Fat 2g10%

Cholesterol 8mg3%

Sodium 473mg20%

Potassium 608mg17%

Carbohydrates 26g9%

Fiber 4g16%

Sugar 4g4%

Protein 5g10%

Vitamin A 2396IU48%

Vitamin C 20mg24%

Calcium 71mg7%

Iron 5mg28%

* Percent Daily Values are based on a 2000 calorie diet.

Keywords: creamy soup recipe, crock pot recipes, crockpot recipes, easy vichyssoise recipe, leek and potato soup recipe, potato leek soup, slow cooker soup

Originally published on December 9th, 2012

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