Potato Leek Soup Recipe

Potato leek soup is one of those simple recipes that proves you don’t need a long ingredient list to make a satisfying bowl of soup. Tender Yukon Gold potatoes and gently cooked leeks create a naturally creamy texture, while garlic, thyme, and bay leaf add subtle savory flavor.

This version uses olive oil instead of heavy cream, so the potatoes provide most of the soup’s body. The result is smooth and comforting without feeling overly rich. You can blend it completely smooth or leave a little texture, depending on how you like your soup.

It’s an easy choice for a weeknight lunch, a light dinner, or a cozy meal on a chilly day. A sprinkle of fresh chives and freshly cracked black pepper adds a bright finish to every bowl.

Quick Recipe Overview

Recipe: Potato Leek Soup
Prep Time: 15 minutes
Cook Time: 35 minutes
Total Time: 50 minutes
Servings: 4–6
Course: Soup
Cuisine: American, French-inspired
Method: Stovetop

Ingredients

• 2 tablespoons extra-virgin olive oil
• 3 large leeks
• 2 garlic cloves, minced
• 4 cups vegetable broth, plus more for a thinner texture
• 2 pounds Yukon Gold potatoes, peeled and diced into 1/2-inch pieces
• 1 teaspoon kosher salt
• 1 bay leaf
• 2 sprigs fresh thyme
• Freshly chopped chives, for garnish
• Freshly ground black pepper, for garnish

How to Make Potato Leek Soup

1. Prepare the Leeks

Leeks can hold quite a bit of dirt between their layers, so cleaning them well is important.

Trim off the dark green tops and the root end, keeping the tender white and light-green portions. Slice the leeks lengthwise, then cut them into thin slices.

Place the sliced leeks in a bowl of cold water and separate the layers with your fingers. Let the dirt settle, then lift the leeks out of the water and drain well.

2. Sauté the Leeks

Heat the olive oil in a large Dutch oven or soup pot over medium heat.

Add the cleaned sliced leeks and cook for about 6–8 minutes, stirring occasionally. The leeks should soften and become fragrant without taking on much color.

Keeping the heat moderate helps preserve their delicate, slightly sweet flavor.

3. Add the Garlic

Stir in the minced garlic and cook for about 30 seconds, just until fragrant.

Avoid cooking the garlic for too long because it can become bitter.

4. Add the Potatoes and Broth

Add the diced Yukon Gold potatoes, vegetable broth, kosher salt, bay leaf, and fresh thyme sprigs.

Stir everything together and bring the soup to a gentle boil.

Once it begins boiling, reduce the heat to medium-low and partially cover the pot.

5. Simmer Until the Potatoes Are Tender

Simmer the soup for about 15–20 minutes, or until the potatoes are completely tender when pierced with a fork.

The potato pieces should be soft enough to blend easily.

Remove the bay leaf and thyme stems before blending.

6. Blend the Soup

Use an immersion blender directly in the pot to blend the soup until smooth.

If using a countertop blender, work in batches and be careful when blending hot liquids. Do not fill the blender container too full, and allow steam to escape according to the blender manufacturer’s instructions.

For a soup with more texture, blend only part of the mixture and leave some potato and leek pieces intact.

7. Adjust the Consistency

Check the consistency after blending.

If the soup is thicker than you like, add a little more vegetable broth and stir until it reaches your preferred texture.

Taste and adjust the salt if needed.

8. Serve

Ladle the hot potato leek soup into bowls.

Finish each serving with freshly chopped chives and a generous amount of freshly ground black pepper.

Serve immediately while warm.

Tips for the Best Potato Leek Soup

Clean the leeks carefully

This is probably the most important preparation step. Dirt can become trapped deep between the layers of leeks, so rinse them thoroughly after slicing.

Don’t brown the leeks too much

The goal is to soften the leeks rather than caramelize them. Gentle cooking keeps their flavor delicate and works especially well in a simple soup like this.

Cut the potatoes evenly

Dice the Yukon Gold potatoes into roughly 1/2-inch pieces. Consistent pieces cook at approximately the same rate, which makes it easier to know when the soup is ready for blending.

Use Yukon Gold potatoes

Yukon Gold potatoes have a naturally buttery texture and moderate starch content, making them particularly well suited to blended soups.

Remove the herbs before blending

Always remove the bay leaf. Remove the thyme stems as well, especially if they have become woody during cooking.

Blend according to your preference

A completely smooth soup has a classic creamy texture, but there is no need to make it perfectly smooth. Leaving some small pieces of potato and leek gives the soup a more rustic feel.

Add broth gradually

It’s easier to thin the soup than to make an overly thin soup thicker. Start with the listed amount of broth and add more only after blending if necessary.

Ingredient Substitutions

Potatoes

Yukon Gold potatoes are ideal, but russet potatoes can also be used. Russets contain more starch and can produce a thicker, softer soup.

Vegetable broth

Chicken broth can be used if you don’t need the soup to be vegetarian. Homemade vegetable stock also works well.

Olive oil

You can replace the olive oil with unsalted butter for a richer flavor. Using butter also gives the leeks a classic, slightly richer taste.

Fresh thyme

If fresh thyme isn’t available, use a small amount of dried thyme. Start conservatively because dried herbs are more concentrated.

Chives

Fresh parsley or thinly sliced green onions can be used instead of chives for garnish.

Potato Leek Soup Variations

Creamy Potato Leek Soup

For a richer version, stir in a small amount of heavy cream after blending. Keep the heat low and avoid boiling the soup after adding dairy.

Rustic Potato Leek Soup

Skip the full blending process. Instead, use a potato masher to break down some of the potatoes while leaving plenty of chunks throughout the soup.

Vegan Potato Leek Soup

The recipe is naturally vegan as written as long as you use vegetable broth. Finish it with fresh chives, black pepper, and a drizzle of olive oil.

Garlic Potato Leek Soup

For a stronger garlic flavor, increase the garlic slightly or roast the garlic before adding it to the soup.

Herb Potato Leek Soup

Add additional fresh herbs such as parsley or a small amount of rosemary for a more pronounced herbal flavor.

Chunky Potato Leek Soup

Reserve some of the cooked potatoes and leeks before blending. Stir them back into the smooth soup for a combination of creamy broth and tender vegetable pieces.

Can I Make Potato Leek Soup Ahead of Time?

Yes. Potato leek soup is an excellent make-ahead recipe.

Prepare it completely, allow it to cool, and refrigerate it in airtight containers. The soup may become thicker as it sits, so add a little vegetable broth when reheating if necessary.

The flavors also have time to blend together, making leftovers especially convenient for lunch or dinner.

How to Store Potato Leek Soup

Store cooled soup in an airtight container in the refrigerator for up to 4 days.

If the soup thickens during refrigeration, stir in a splash of vegetable broth or water while reheating until the desired consistency is reached.

How to Reheat Potato Leek Soup

Reheat the soup gently in a saucepan over medium-low heat, stirring occasionally.

You can also reheat individual portions in the microwave. Heat in short intervals and stir between each interval for more even heating.

Avoid bringing the soup to a vigorous boil, particularly if you have added cream.

Can You Freeze Potato Leek Soup?

Yes, although the texture can change slightly after freezing and thawing.

Allow the soup to cool completely before transferring it to freezer-safe containers. Leave some space at the top for expansion.

Freeze for up to about 3 months for the best quality.

Thaw overnight in the refrigerator and reheat gently. If the texture seems slightly separated after thawing, whisk or blend the soup briefly to bring it back together.

What to Serve with Potato Leek Soup

Potato leek soup works well as either a light main course or a starter.

Serve it with:

• Crusty French bread
• Garlic bread
• Sourdough bread
• A simple green salad
• Roasted vegetables
• Dinner rolls
• Crackers
• Fresh herbs
• A drizzle of extra-virgin olive oil

For a more substantial meal, pair it with a sandwich or a simple protein on the side.

Nutrition Information

The following is an estimated nutrition value per serving, assuming 6 servings and no additional garnishes beyond the listed chives and black pepper. Actual values will vary depending on the specific ingredients and brands used.

• Calories: 235
• Protein: 5g
• Carbohydrates: 38g
• Fat: 8g
• Saturated Fat: 1g
• Fiber: 5g
• Sugar: 4g
• Sodium: 700mg

Frequently Asked Questions

Do I have to peel the potatoes?

For the smoothest potato leek soup, peeling the potatoes is recommended. It creates a more uniform texture after blending.

Why does my potato leek soup taste bland?

Potatoes have a mild flavor and can require enough seasoning to bring out their best. Taste the soup after blending and adjust the salt gradually. Fresh black pepper, thyme, and chives also help brighten the finished soup.

Can I make potato leek soup without a blender?

Yes. You can use a potato masher to break down the cooked potatoes and leeks. The finished soup will be more rustic and chunky rather than completely smooth.

Why is my soup too thick?

Potatoes release starch as they cook and blend, which naturally thickens the soup. Simply add more vegetable broth a little at a time until the consistency is right.

Can I use russet potatoes instead of Yukon Gold?

Yes. Russet potatoes work well and create a thicker, starchier soup. Yukon Gold potatoes provide a slightly more buttery and naturally creamy texture.

Can I add cream to this recipe?

Absolutely. Heavy cream can be added after blending for a richer soup. Add it gradually and keep the soup below a vigorous boil.

Can I make this soup vegan?

Yes. As written, the recipe can be vegan when prepared with vegetable broth and without dairy-based additions. Olive oil provides the cooking fat.

What is the best way to clean leeks?

Slice the leeks first, then place them in a bowl of cold water and separate the layers. Dirt will sink to the bottom while the leek pieces float. Lift the leeks from the water rather than pouring the dirty water back over them.

Final Thoughts

Potato leek soup is a wonderfully simple recipe built around a few dependable ingredients. Yukon Gold potatoes provide the creamy body, while leeks bring a mild onion flavor that becomes sweet and tender as they cook.

With garlic, thyme, and bay leaf in the broth, the soup develops plenty of flavor without needing cream or a long list of ingredients. Blend it completely smooth for a classic bowl or leave some pieces intact for a more rustic texture.

A final sprinkle of fresh chives and black pepper is all it needs before serving alongside warm, crusty bread.

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