Classic potato and leek soup is comfort at its most elemental — potatoes, leeks, butter, and warm stock simmered for twenty minutes into something silky and restorative. This medieval-style potage proves the oldest recipes are often the sturdiest.
There’s something magical about the humble combination of potatoes and leeks. This classic soup transforms simple, year-round ingredients into a bowl of velvety, comforting goodness. Once considered peasant fare, its elegant flavor has made it a timeless favorite. This recipe is the essence of simplicity—a medieval-style potage that can warm you to the core on a winter’s day or, when served chilled, offer a refreshing escape from summer heat. It’s a beautiful canvas for variations, whether you’re craving a rich, creamy texture or a vibrant, dairy-free alternative. Let’s get simmering!
Ingredients
• MAKES: 4 servingsTIME: 30 minutes
• 2 tbsp / 30g (1.06 oz) unsalted butter or extra virgin olive oil for a vegan option
• 3 large leeks, white and light green parts only, well-washed and thinly sliced
• 3 medium potatoes (about 1.5 lbs / 680g / 24 oz), peeled and cut into small cubes
• 1 quart / 4 cups / 950ml vegetable stock, warmed
• Salt and freshly ground black pepper, to taste
• Optional for garnish: fresh chives, parsley, or a splash of cream
Instructions
1. In a large pot or Dutch oven, melt the butter or heat the olive oil over medium heat. Add the sliced leeks and cubed potatoes, sprinkle generously with salt and pepper, and cook, stirring occasionally, for about 3-5 minutes until the leeks have softened slightly.
2. Pour in the warm vegetable stock, bring to a gentle boil, then reduce the heat to a simmer. Cover and cook for about 20 minutes, or until the potatoes are very tender and easily pierced with a fork.
3. For a rustic, chunky soup, it’s ready to serve now. For a smooth and creamy texture, carefully use an immersion blender to purée the soup directly in the pot until it reaches your desired consistency. You can also transfer it in batches to a regular blender.
4. Taste and adjust the seasoning with more salt and pepper if needed. Ladle into bowls, garnish with fresh chives, and serve immediately.
Nutritional Information
• (Approximate values per serving, based on using olive oil)
• Calories: 295 kcal
• Carbohydrates: 52g
• Protein: 7g
• Fat: 8g
• Fiber: 6g
Pro Tips
• & Variations
• How to Clean Leeks: Leeks trap a lot of dirt between their layers. The best way to clean them is to slice them first, then place the rings in a large bowl of cold water. Swish them around to release the grit, let it settle, and then scoop the clean leeks from the top.
• Make it Vichyssoise: For the classic chilled soup, purée the soup until silky smooth, stir in 1/2 cup (480 ml) of heavy cream, and chill thoroughly for at least 4 hours before serving. Garnish with chives.
• Creamy Vegan Option: To achieve a rich, dairy-free creaminess, let the puréed soup cool slightly, then blend in the flesh of one ripe avocado until completely smooth.
• Boost the Veggies: Feel free to add about a cup of shredded carrots, celery, or chopped asparagus along with the potatoes and leeks for extra flavor and nutrients. You may need to add a splash more stock.
FAQ
Q: How can I make this potato leek soup creamy without dairy
A: For a wonderfully creamy and dairy-free soup, this recipe suggests a fantastic trick. After puréeing the soup and letting it cool slightly, blend in the flesh of one ripe avocado until it’s completely smooth. This adds richness and a velvety texture without any dairy products. You can also use a splash of full-fat coconut milk or a cashew cream for a similar effect.
Q: Can I add more protein to this vegetarian soup
A: Absolutely. To boost the protein content, consider blending in a cup of cannellini beans or chickpeas along with the potatoes and leeks before puréeing. They will add a creamy texture and a significant protein boost. Alternatively, you can serve the soup with a swirl of high-protein plain Greek yogurt (if not vegan) or top it with toasted pumpkin seeds or crispy roasted chickpeas.
Q: How do I store leftover potato and leek soup
A: You can store leftover soup in an airtight container in the refrigerator for up to 4 days. It reheats beautifully on the stovetop or in the microwave. If you plan to freeze it, it’s best to do so before adding any dairy or avocado. Let the soup cool completely, then freeze it for up to 3 months. Thaw it in the refrigerator overnight before reheating.
Q: What are the best potatoes for potato leek soup
A: For a creamy, velvety soup, starchy potatoes like Russets or Idaho potatoes are an excellent choice as they break down easily when cooked. For a slightly less starchy but still creamy result, all-purpose potatoes like Yukon Golds work wonderfully and add a buttery flavor. Waxy potatoes like red potatoes will hold their shape more, which is better if you prefer a chunkier, more rustic soup.
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Classic Potato and Leek Soup (Medieval-Style Potage)
Ingredients
Method
- In a large pot or Dutch oven, melt the butter or heat the olive oil over medium heat.
- Add the sliced leeks and cubed potatoes, sprinkle generously with salt and pepper, and cook, stirring occasionally, for about 3-5 minutes until the leeks have softened slightly.
- Pour in the warm vegetable stock, bring to a gentle boil, then reduce the heat to a simmer.
- Cover and cook for about 20 minutes, or until the potatoes are very tender and easily pierced with a fork.
- For a rustic, chunky soup, it's ready to serve now. For a smooth and creamy texture, carefully use an immersion blender to purée the soup directly in the pot until it reaches your desired consistency. You can also transfer it in batches to a regular blender.
- Taste and adjust the seasoning with more salt and pepper if needed. Ladle into bowls, garnish with fresh chives, and serve immediately.
