This creamy potato and leek soup recipe is silky, comforting, and ready in under an hour — the kind of bowl that tastes like someone actually loves you.
Honestly, the first time I made leek and potato soup on a rainy Tuesday with nothing but sad-looking leeks and a bag of potatoes, I did not expect magic. I got magic.
This is the soup that earns you compliments. It’s rich without being heavy, cozy without being fussy, and it comes together with ingredients you probably already have.
Table of Contents
Why You’ll Love This Recipe
This potato soup hits every comfort-food note. The leeks melt into something buttery and sweet, the potatoes turn velvety, and that swirl of cream at the end? Chef’s kiss.
It’s also surprisingly simple. No fancy equipment, no hard-to-find ingredients. Just good stuff, done right. Whether you’re feeding a crowd or just yourself on a couch night, this leek soup delivers every single time.
If you love cozy soup recipes, you’ll also want to check out this Valerie Bertinelli favorite soup recipe — it has the same warm, homey energy.
Potato and Leek Soup Recipe
Equipment
- Large soup pot or Dutch oven
- Knife
- Cutting board
- Measuring cups and spoons
- Immersion blender or countertop blender
- Baking sheet
- Ladle
- Soup bowls
Ingredients
Soup Base
- 2 tablespoons butter 30 g
- 2 cloves garlic large cloves, finely minced
- 3 leeks white and pale green parts only, thinly sliced; about 2 cups
- 1 kg potatoes about 2 lb; Sebago, Russet, or Maris Piper, peeled and cut into 1-inch cubes
- 6 cups chicken or vegetable stock low sodium; about 1.5 litres
- ¾ cup heavy or thickened cream whole milk may be substituted
Seasoning
- 1 teaspoon cooking salt or kosher salt
- ½ teaspoon black pepper
Croutons
- 2 slices thick bread torn into pieces
- 1 tablespoon melted butter or olive oil or use olive oil spray
- 1 pinch salt for croutons
Garnish
- to taste fresh chives finely chopped
- to taste extra cream for drizzling
Instructions
- Melt the butter in a large soup pot or Dutch oven over medium heat. Add the garlic and sliced leeks, then sauté for about 7 minutes, until the leeks are very soft and lightly golden at the edges.
- Add the diced potatoes and stock. Bring to a simmer, cover the pot, reduce the heat to maintain a gentle simmer, and cook for 25 minutes, until the potatoes are very soft and nearly falling apart.
- Turn off the heat. Use an immersion blender to purée the soup until just smooth and silky, being careful not to over-blend the potatoes or the soup may become gluey. If using a countertop blender, blend in small batches with the lid vented for steam to escape.
- Stir in the cream, salt, and black pepper. Taste and adjust the seasoning as needed. If the soup is too thick, add a splash of stock or water.
- For the croutons, preheat the oven to 350°F, or 160°C fan-forced. Toss the torn bread with melted butter or olive oil and spread on a baking sheet. Bake for about 5 minutes, until golden and crisp, then season with a pinch of salt.
- Ladle the hot soup into bowls. Drizzle with extra cream, scatter with chives, and top with the warm croutons. Serve immediately.
Notes
Ingredients You’ll Need
Here’s everything that goes into this leek and potato soup. I’ve grouped it by component so it’s easy to shop and prep.
| Component | Ingredient | Amount |
|---|---|---|
| Soup Base | Butter | 2 tbsp (30g) |
| Soup Base | Garlic cloves, large, finely minced | 2 cloves |
| Soup Base | Leeks, white and pale green parts, thinly sliced | 3 leeks (about 2 cups) |
| Soup Base | Potatoes (Sebago, Russet, or Maris Piper), peeled and diced into 1″ cubes | 1 kg / 2 lb |
| Soup Base | Chicken or vegetable stock, low sodium | 1.5 litres / 6 cups |
| Soup Base | Heavy/thickened cream (or sub milk) | 3/4 cup |
| Seasoning | Cooking salt / kosher salt | 1 tsp |
| Seasoning | Black pepper | 1/2 tsp |
| Croutons | Thick bread slices, torn into pieces | 2 slices |
| Croutons | Melted butter or olive oil spray | 1 tbsp |
| Croutons | Salt | Pinch |
| Garnish | Chives, finely chopped | To taste |
| Garnish | Extra cream | For drizzling |
Note 1 on leeks: Use only the white and pale green parts — the dark green tops are tough and bitter. Slice them thin so they soften evenly.
Note 2 on potatoes: Starchy varieties like Russet or Sebago break down beautifully and give the soup that thick, velvety body. Waxy potatoes won’t work as well here.
How to Make Potato and Leek Soup
This potato and leek soup comes together in four easy steps. I’ll walk you through each one with tips so nothing goes sideways.
Step 1: Saute the Leeks and Garlic
Melt the butter in a large pot over medium heat. Add the garlic and sliced leeks, then saute for about 7 minutes until they’re completely soft, golden at the edges, and smell absolutely incredible.
Don’t rush this step. Those 7 minutes are doing serious flavor work. The leeks go from sharp and grassy to sweet and silky — that’s the foundation of your whole soup.
Step 2: Add Potatoes and Simmer
Add your diced potatoes and stock to the pot. Crank the heat to bring it up to a simmer, then pop the lid on and reduce to a gentle simmer. Let it go for 25 minutes.
You want the potatoes very soft — almost falling apart when you poke them with a fork. That’s exactly what you’re after. Don’t pull them early.
Step 3: Blend (But Not Too Much)
Turn off the stove. Use a stick blender to puree the soup until it’s just smooth. This is the key move: do not over-blend.
Over-blending potato soup makes it gluey and starchy — the starch cells break down and it turns into wallpaper paste. Stop the moment it looks smooth and silky.
Note 3: If you only have a stand blender, work in batches and leave the lid slightly vented so steam can escape. Be careful — hot soup expands!
Step 4: Add Cream and Season
Stir in the cream, then taste and season with salt and pepper. The cream softens the whole flavor profile and makes the leek soup feel luxurious without tasting heavy.
Start with the recommended salt, but taste as you go. Stock brands vary a lot in sodium, so your palate is the best guide here.
Step 5: Make the Croutons
Preheat your oven to 180°C / 350°F (or 160°C fan-forced). Tear the bread into rough crouton-sized chunks and toss them with melted butter or a spray of olive oil.
Bake for about 5 minutes until golden and crunchy. Pull them out and hit them with a pinch of salt while they’re still hot — that’s the secret to croutons that actually taste like something.
If you love crunchy toppings, these are also amazing on crispy roasted chickpeas — great for adding texture to soups and salads.
Step 6: Serve It Up
Ladle the soup into bowls. Drizzle with a little extra cream, scatter over the chives, and pile on those golden croutons. Serve immediately while everything’s hot.
That little cream swirl isn’t just pretty — it adds a cool, rich contrast to the hot soup. Don’t skip it.
Expert Tips, Variations, and Troubleshooting
Tips for the Best Results
Use a starchy potato variety like Russet, Sebago, or Maris Piper. These break down and create that naturally thick, creamy texture without needing a ton of cream.
Low-sodium stock is important here. You’re reducing liquid slightly as it simmers, which concentrates the saltiness. Starting lower gives you more control at the end.
Want a lighter version? Swap the cream for whole milk or even a good oat milk. The soup won’t be quite as rich, but it’ll still be deeply satisfying.
Flavor Variations Worth Trying
Add a pinch of smoked paprika or a handful of grated cheddar stirred in at the end. Both take this leek soup in a completely different direction — smoky or cheesy. Both are excellent choices.
For a fancier feel, top with crispy pancetta or bacon bits instead of croutons. The salty crunch against the creamy potato soup is ridiculous in the best way.
Swap chicken stock for vegetable stock and use plant-based cream to make this completely vegan. It’s just as good — genuinely.
Troubleshooting Common Issues
If your soup is too thick, just add a splash of extra stock or water and stir it through over low heat. It thins out quickly.
If it’s too thin, let it simmer uncovered for a few minutes to reduce and thicken. Alternatively, mash a few more cooked potato chunks into it — free thickener.
Soup turned gluey? That’s the over-blending issue mentioned above. Unfortunately there’s no fixing it once it’s happened, so next time, blend in short pulses and stop early.
Storage Instructions
This potato soup stores really well, which makes it perfect for meal prep. Here’s exactly how to keep it fresh:
| Method | Container | Duration |
|---|---|---|
| Refrigerator | Airtight container | Up to 4 days |
| Freezer | Freezer-safe bag or container | Up to 3 months |
Reheating Tips
Reheat on the stovetop over medium-low heat, stirring occasionally. If it’s thickened in the fridge, add a splash of stock or water to loosen it back up.
Microwave works too — heat in 90-second bursts, stirring between each one. Soup heats unevenly in the microwave, so stirring keeps it consistent.
No-Waste Kitchen Ideas
Got leftover leek tops? Toss them into a homemade stock or compost them — don’t throw away produce unnecessarily.
Stale bread that’s past its prime? Tear it up and make a double batch of croutons. They keep in an airtight container for 3 days and are great on salads too.
Leftover soup makes an amazing base for a potato and leek pasta sauce — just reduce it down a little more and toss with your noodle of choice. Trust the process.
Looking for more cozy weeknight ideas? This Lipton onion soup brisket recipe is another pantry-friendly winner that practically cooks itself.
What to Serve With This Soup
Honestly? Crusty bread is all you need. A thick slice of sourdough or a warm baguette dunked straight into the bowl is the move.
If you want to turn it into a full meal, a simple green salad on the side rounds things out nicely. Something with a sharp vinaigrette cuts through the richness of the leek and potato soup beautifully.
This soup also works great as a starter before something heartier, like this showstopper Napa soup dumpling lasagna for an impressive dinner party spread.
For more ideas on what makes a good soup night, the team at Serious Eats breaks down potato soup science in a way that actually changes how you cook.
Frequently Asked Questions
Can I make this potato and leek soup ahead of time?
Yes, this soup is actually better the next day once the flavors have had time to meld. Make it up to 2 days ahead, store it in an airtight container in the fridge, and reheat gently on the stovetop. Add croutons and garnishes fresh right before serving.
Can I freeze leek and potato soup?
Yes, this soup freezes really well — just leave out the cream before freezing. Freeze the base for up to 3 months, then stir in the cream after reheating. This keeps the texture smooth and prevents any graininess.
What potatoes work best for potato soup?
Starchy varieties like Russet, Sebago, or Maris Piper are your best bet. They break down as they cook and naturally thicken the soup to a silky consistency. Waxy potatoes like red or fingerling varieties won’t give you the same creamy result.
Can I make this leek soup without cream?
Absolutely. Swap the cream for whole milk for a lighter result, or use a plant-based alternative like oat milk to keep it dairy-free. The soup will be slightly less rich but still deeply flavorful and comforting.
Do I need a stick blender, or can I use a regular blender?
A stick blender is easiest and gives you the most control, but a regular blender works fine. Blend in small batches, leave the lid slightly ajar to let steam escape, and cover the opening with a folded kitchen towel. Never fill the blender more than halfway with hot liquid.
Final Thoughts
This potato and leek soup recipe is one of those dishes that never lets you down. It’s simple, it’s satisfying, and it makes your kitchen smell like a warm hug.
The leeks bring sweetness, the potatoes bring body, and that cream brings it all together into something that feels genuinely special — even though it took under an hour and cost almost nothing.
Give it a try this week and let me know how it goes in the comments below. And if you loved it, save it to Pinterest so it’s there next time the weather turns and you need something warm.
