Leeks are one of those vegetables that often get overlooked, yet they bring a subtle sweetness and depth to dishes that onions simply can't match. But they also have a reputation for being tricky: they hide grit between their layers, and if not cleaned properly, they can ruin an otherwise perfect soup.
Advertisements1
This creamy leek and potato soup solves that problem with a thorough washing technique that's foolproof. It's a classic French-inspired dish that's both rustic and elegant, requiring minimal ingredients and one pot. The result is a velvety soup with a delicate onion flavor, perfect for a light lunch or a cozy dinner.
The key to this soup's silky texture is blending it until completely smooth. You can use an immersion blender for convenience or a countertop blender for an even silkier finish. Either way, you'll get a luxurious bowl of comfort that's naturally gluten-free and vegetarian.
Why You'll Love This Recipe
About the Ingredients
3 tablespoons (42g) unsalted butter
Adds richness and helps sauté the leeks. Substitute with olive oil for a dairy-free version.
3 large leeks (about 450g), white and light green parts only, cleaned and thinly sliced
The star of the dish. When buying, choose leeks with firm, crisp leaves and a lot of white part. If leeks are unavailable, use 2 large onions as a substitute.
4 cups (960ml) vegetable or chicken broth, low-sodium
The base of the soup. Homemade broth adds more flavor, but store-bought works well. Use low-sodium to control saltiness.
1.5 pounds (680g) Yukon Gold potatoes, peeled and diced into 1-inch cubes
Yukon Golds give a creamy texture. Russets also work, but they can make the soup slightly gluey if over-blended. No need to peel if you prefer a more rustic texture.
1 teaspoon salt, plus more to taste
Enhances natural flavors. Use fine sea salt for even distribution. Adjust according to your broth's saltiness.
1/2 teaspoon freshly ground black pepper
Adds a gentle warmth. Freshly ground is always better; adjust to your preference.
1/2 cup (120ml) heavy cream or crème fraîche (optional)
Adds extra richness if desired. For a lighter version, omit or use half-and-half. Coconut cream works for a dairy-free option.
2 tablespoons fresh chives, chopped (for garnish)
Adds a fresh oniony pop. Substitute with parsley or dill if preferred.
Tips & Tricks
Clean leeks thoroughly
Cut off the dark green tops and root ends, then slice lengthwise and rinse under running water, separating the layers to remove grit.
Don't let the leeks brown
Sauté them over medium heat until soft and translucent, about 5 minutes, to avoid a bitter taste.
Blend carefully
If using a countertop blender, blend in batches and don't fill it more than halfway. Hold the lid with a towel to prevent splatters.
Pro Tips
Step-by-Step Instructions
1. Melt Butter
In a large pot or Dutch oven, melt the butter over medium heat (350°F / 175°C). Swirl the pot to coat the bottom.
2. Sauté Leeks
Add the sliced leeks and a pinch of salt. Cook, stirring occasionally, until the leeks are softened and translucent, about 5 minutes. Do not let them brown.
3. Add Potatoes
Stir in the diced potatoes and cook for 2 minutes, coating them with the butter and leek mixture.
4. Pour Broth
Add the broth, salt, and pepper. Increase heat to high (400°F / 200°C) and bring to a boil.
5. Simmer Until Tender
Reduce heat to low (200°F / 95°C), cover, and simmer for 15-20 minutes, until potatoes are fork-tender.
6. Blend the Soup
Using an immersion blender, blend the soup until completely smooth. If using a countertop blender, work in batches. Return the soup to the pot.
7. Add Cream (Optional)
Stir in the heavy cream or crème fraîche, if using. Heat gently over low heat until warm, about 2 minutes. Do not boil.
8. Season and Serve
Taste and adjust seasoning with salt and pepper. Ladle into bowls and garnish with chives. Serve hot.
Delicious Variations
- Add a handful of fresh spinach or arugula during the last 5 minutes of simmering for extra greens.
- Top with crispy bacon bits and a swirl of sour cream for a richer version.
- Stir in 1 teaspoon of curry powder along with the potatoes for a subtly spiced twist.
How to Store Creamy Leek and Potato Soup
Refrigerator
Store in an airtight container in the fridge for up to 4 days.
Freezer
Freeze in a freezer-safe container for up to 3 months. Thaw overnight in the fridge before reheating.
Reheating
Reheat gently on the stovetop over medium-low heat, stirring occasionally. Add a splash of broth or water if too thick.
Frequently Asked Questions
Q: Can I freeze leek and potato soup?
Yes, you can freeze this soup for up to 3 months. Let it cool completely, then store in an airtight container. Thaw in the fridge overnight and reheat gently. The texture may change slightly, so stir well and add a little liquid if needed.
Q: How do I clean leeks properly?
Trim the dark green tops and root ends, then slice the leek lengthwise. Rinse under running water, separating the layers to remove any trapped grit. Pat dry before slicing.
Q: Can I make this soup without cream?
Absolutely. The soup is naturally creamy from the potatoes, so you can omit the cream entirely. For a dairy-free version, use olive oil instead of butter and skip the cream or use coconut milk.
Q: What potatoes are best for soup?
Yukon Gold or Russet potatoes are ideal because they break down easily and create a creamy texture. Waxy potatoes like red or new potatoes will remain chunky, resulting in a thinner soup.
Q: Can I use an immersion blender?
Yes, an immersion blender is perfect for this soup. Blend directly in the pot until smooth. If using a countertop blender, allow the soup to cool slightly and blend in batches to avoid splattering.
If you loved this creamy leek and potato soup, I'd love to hear about it! Leave a comment below, share your creation on social media, and tag me. Don't forget to subscribe for more comforting recipes delivered straight to your inbox.
Creamy Leek and Potato Soup
This creamy leek and potato soup is silky, comforting, and ready in 30 minutes. A simple one-pot meal that's both satisfying and budget-friendly.
🧂 Ingredients
- 3 tablespoons (42g) unsalted butter
- 3 large leeks (about 450g), white and light green parts only, cleaned and thinly sliced
- 4 cups (960ml) vegetable or chicken broth, low-sodium
- 1.5 pounds (680g) Yukon Gold potatoes, peeled and diced into 1-inch cubes
- 1 teaspoon salt, plus more to taste
- 1/2 teaspoon freshly ground black pepper
- 1/2 cup (120ml) heavy cream or crème fraîche (optional)
- 2 tablespoons fresh chives, chopped (for garnish)
📋 Instructions
- 1Melt Butter — In a large pot or Dutch oven, melt the butter over medium heat (350°F / 175°C). Swirl the pot to coat the bottom.
- 2Sauté Leeks — Add the sliced leeks and a pinch of salt. Cook, stirring occasionally, until the leeks are softened and translucent, about 5 minutes. Do not let them brown.
- 3Add Potatoes — Stir in the diced potatoes and cook for 2 minutes, coating them with the butter and leek mixture.
- 4Pour Broth — Add the broth, salt, and pepper. Increase heat to high (400°F / 200°C) and bring to a boil.
- 5Simmer Until Tender — Reduce heat to low (200°F / 95°C), cover, and simmer for 15-20 minutes, until potatoes are fork-tender.
- 6Blend the Soup — Using an immersion blender, blend the soup until completely smooth. If using a countertop blender, work in batches. Return the soup to the pot.
- 7Add Cream (Optional) — Stir in the heavy cream or crème fraîche, if using. Heat gently over low heat until warm, about 2 minutes. Do not boil.
- 8Season and Serve — Taste and adjust seasoning with salt and pepper. Ladle into bowls and garnish with chives. Serve hot.
Kenji covers tech productivity and digital minimalism for remote workers. He writes about streamlining workflows and cutting digital clutter with a focus on mental clarity, not just efficiency.
