Potato leek soup is a comforting, creamy classic that has been cherished for generations. This old-fashioned recipe is simple, hearty, and full of flavor. Using minimal ingredients, it’s the perfect dish for a cozy meal at home. Here’s how you can prepare this delightful soup for six servings.
1. Old Fashioned Potato Leek Soup Recipe
Ingredients
3 tablespoons unsalted butter
4 large leeks, white and light green parts only, roughly chopped (about 5 cups)
3 cloves garlic, peeled and smashed
2 pounds Yukon Gold potatoes, peeled and roughly chopped into ½-inch pieces
7 cups chicken or vegetable broth
2 bay leaves
3 sprigs fresh thyme
1 teaspoon salt
¼ teaspoon ground black pepper
1 cup heavy cream
Chives, finely chopped, for serving
Instructions
Step 1: Prepare the Leeks
Leeks can often trap dirt between their layers, so it’s important to clean them thoroughly. Cut off the dark green tops and root ends, keeping only the white and pale green portions.
Slice the leeks lengthwise, then chop them into half-moon slices. Place them in a large bowl of cold water, swish them around to release any grit, and lift them out into a colander to drain.
Step 2: Sauté the Leeks and Garlic
In a large soup pot or Dutch oven, melt 3 tablespoons of unsalted butter over medium heat. Once melted, add the chopped leeks and smashed garlic cloves.
Sauté gently for 8–10 minutes, stirring often, until the leeks become soft and translucent. Avoid browning them—this soup is meant to have a delicate flavor and pale, creamy color.
Step 3: Add the Potatoes and Broth
Next, stir in the chopped Yukon Gold potatoes. Pour in the chicken or vegetable broth, then add bay leaves, thyme sprigs, salt, and black pepper. Stir everything together and bring the mixture to a gentle boil.
Step 4: Simmer Until Tender
Reduce the heat to low and let the soup simmer, uncovered, for about 25–30 minutes, or until the potatoes are completely tender when pierced with a fork. The leeks should also be soft and fragrant at this point.
Step 5: Blend the Soup
Once the vegetables are cooked, remove the bay leaves and thyme sprigs. Use an immersion blender directly in the pot to puree the soup until smooth and creamy. If you don’t have an immersion blender, carefully transfer the soup to a blender in batches and puree until silky, then return it to the pot.
Step 6: Add Cream and Adjust Seasoning
Reduce the heat to low and stir in the heavy cream. Let the soup warm through for another 2–3 minutes, but do not let it boil after adding cream. Taste and adjust with additional salt and pepper if needed.
Step 7: Serve
Ladle the hot soup into bowls and sprinkle with finely chopped chives for a touch of freshness and color. Serve immediately with a side of crusty bread or a green salad for a complete, satisfying meal.
2. Tips for Perfect Potato Leek Soup
Use the Right Potatoes:
Yukon Gold potatoes are ideal because of their creamy texture and buttery flavor. Russet potatoes can be used as well, but they may create a slightly grainier texture.
Don’t Overbrown the Leeks:
Keep the heat moderate while sautéing. If the leeks brown too much, they’ll give the soup a bitter taste and alter its signature pale color.
Add Broth Gradually if Needed:
Depending on how thick you prefer your soup, you may want to start with 6 cups of broth and add more later. The soup thickens as it cools, so a bit of extra broth can help achieve a perfect consistency.
Blend Carefully:
If using a countertop blender, allow the soup to cool slightly before blending and do not overfill the blender jar—hot soup can create steam pressure that pops the lid off.
Enhance with Garnishes:
Besides chives, you can top the soup with crispy bacon bits, grated cheese, or a drizzle of olive oil for added flavor and texture.
3. Serving Suggestions
Old-fashioned potato leek soup pairs wonderfully with a variety of sides and toppings. Here are a few ideas:
Crusty Bread or Baguette: The classic pairing! Use it to soak up every creamy drop of soup.
Side Salad: A crisp green salad with a light vinaigrette helps balance the richness of the soup.
Cheese Toast: Top slices of bread with melted Gruyère or cheddar for a comforting side.
Smoked Salmon: Add a touch of luxury by serving with smoked salmon or a dollop of sour cream on top.
For a Hearty Meal: Serve with roasted chicken, grilled sausage, or a simple omelet for a full dinner.
4. Frequently Asked Questions
Can I make potato leek soup ahead of time?
Yes! This soup actually improves with time. You can make it a day or two in advance, store it in an airtight container in the refrigerator, and gently reheat it on the stove before serving. Just don’t add the cream until reheating to maintain a silky texture.
Can I freeze potato leek soup?
You can freeze it, but for the best results, freeze it before adding the cream. Once thawed and reheated, stir in fresh cream just before serving. This prevents separation and maintains smoothness.
How can I make this soup vegan?
Simply substitute the butter with olive oil or vegan butter, use vegetable broth instead of chicken broth, and replace heavy cream with coconut milk or any plant-based cream.
My soup turned out too thick—what should I do?
If your soup is thicker than you like, just stir in a little more broth, milk, or cream until you reach your desired consistency. Warm it through gently before serving.
Can I serve this soup cold?
Yes! When chilled, potato leek soup transforms into vichyssoise, a French classic. Serve it cold with a drizzle of cream and herbs for an elegant summer dish.
Potato leek soup is a classic recipe that’s easy to customize and perfect for any season. With its creamy texture and wholesome ingredients, it’s sure to become a favorite in your home. Give it a try and enjoy the comforting flavors of this classic dish!
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