Chilled Leek and Potato Soup

Velvety Vegan Vichyssoise: The Ultimate Chilled Leek and Potato Soup Recipe

Experience the luxurious taste of classic French cuisine with this exquisite vegan vichyssoise recipe. This smooth, delicately flavored chilled potato soup is surprisingly simple to prepare at home, offering a sophisticated starter or light meal that’s entirely plant-based. Perfect for warm weather or as an elegant appetizer, our dairy-free rendition maintains all the velvety creaminess and subtle flavors of the traditional version.

Smooth, delicately flavoured vegan vichyssoise in a white bowl with fresh chives

Vichyssoise, a hallmark of French gastronomy, is celebrated for its incredibly smooth, creamy consistency and a harmonious blend of mild flavors. Traditionally served cold, it makes for an ideal appetizer or a refreshing light lunch. The authentic recipe features puréed leeks, onions, potatoes, heavy cream, and chicken stock. Our vegan adaptation lovingly preserves the essence of this classic, proving that plant-based ingredients can deliver an equally impressive, if not superior, culinary experience.

Crafting vegan vichyssoise offers a delightful contemporary twist on this timeless dish. By replacing chicken stock with a rich, aromatic vegetable stock, we introduce nuanced layers of flavor, while plant-based sour cream lends an irresistible creaminess and a subtle, pleasant tang. The foundational elements—the fresh leeks and hearty potatoes—remain central, ensuring that this soup retains its unmistakable character and comforting familiarity. You’ll be amazed at how effortlessly it achieves that luxurious texture and delicate taste without any animal products.

A bowl of creamy vegan vichyssoise garnished with vibrant fresh chives

Why You’ll Adore This Vegan Vichyssoise Recipe

  • Effortless Elegance & Simple Perfection: This recipe epitomizes the idea that less can truly be more. With just a handful of wholesome ingredients, you can create a soup that feels incredibly gourmet yet is remarkably straightforward to make. Unlike heavily adorned dishes like loaded potato soup, this vichyssoise allows the purity of its components to shine, showcasing sophisticated flavor with minimal fuss.
  • Unrivaled Creaminess and Velvety Texture: Prepare for a truly luxurious experience. The careful blending of cooked leeks and potatoes, combined with plant-based sour cream, results in a soup with an unbelievably smooth, velvety texture. This isn’t a chunky, rustic soup like vegetable minestrone; it’s a silken elixir that glides over the palate, leaving a delightful, lingering taste.
  • Authentic French Flavors, Vegan Style: For those who cherish French cuisine but seek plant-based options, this vegan vichyssoise is a dream come true. It captures the delicate, aromatic essence of the original recipe, making classic French flavors accessible and enjoyable for everyone. It’s a testament to how traditional dishes can be reimagined without compromising on taste or quality.
  • Perfect for Any Occasion: Whether you’re hosting a sophisticated dinner party or simply craving a comforting yet light meal, this chilled leek and potato soup fits the bill. Its elegant presentation and refreshing quality make it a versatile addition to your culinary repertoire, impressing guests and satisfying your own cravings alike.
Overhead view of fresh ingredients for making vegan vichyssoise, including leeks, potatoes, onions, and spices

Essential Ingredients for Your Vegan Vichyssoise

Crafting the perfect vegan vichyssoise begins with high-quality, fresh ingredients. Below, you’ll find a detailed breakdown of what you’ll need and specific tips for each item. You can find the exact quantities and step-by-step instructions in the comprehensive recipe card further down this page.

  • Vegan Butter: This is key for sautéing our aromatics and building a rich flavor foundation. Both commercially available vegan butter brands and a luscious homemade version, such as my nut-free vegan butter recipe, will work beautifully. Choose a brand you trust for its flavor and texture.
  • Leeks: These elegant members of the onion family are the star of vichyssoise. For this recipe, you’ll primarily use the white and light green parts of the leeks, as they are the most tender and flavorful. Make sure to clean them thoroughly to remove any hidden dirt. The darker green tops can be saved and frozen to enhance the flavor of homemade vegetable broth.
  • Yellow Onion: A standard yellow onion provides a sweet and savory base, complementing the leeks without overpowering their delicate taste. Dice it finely to ensure it softens evenly during sautéing.
  • Russet Potatoes: Essential for achieving that signature smooth and creamy texture. Russet potatoes are starchy, which helps create a thick, velvety consistency when blended. Peeling them is crucial to prevent any undesirable grainy bits in your finished soup. Dicing them uniformly will ensure they cook through at the same rate.
  • Aromatic Seasonings: We’ll use a blend of classic herbs and spices to enhance the natural flavors of the vegetables.
    • Salt: To bring out the best in all ingredients.
    • Dried Thyme & Dried Marjoram: These earthy, slightly floral herbs add depth and a quintessential French touch.
    • Garlic Powder: For a subtle hint of garlic without the raw pungency of fresh garlic.
    • Ground Black Pepper: Adds a touch of warmth and mild spice.
    • Bay Leaves: These aromatic leaves infuse the soup with a savory, almost woody flavor during simmering. Remember to remove them before blending!
  • Vegetable Stock: The liquid base of our soup. A good quality vegetable stock is vital for a robust flavor. Choose a low-sodium option to better control the seasoning.
  • Vegan Sour Cream: This is our secret ingredient for achieving the perfect creamy texture and a delightful tang that mimics traditional vichyssoise. My homemade vegan sour cream recipe is fantastic, but a good quality store-bought version works just as well. It’s added towards the end to preserve its fresh flavor and tang.
  • Chopped Fresh Chives: For garnish, offering a beautiful pop of color and a mild, oniony freshness that brightens the entire dish.

Vegetable Stock vs. Vegetable Broth: A Quick Clarification

While “stock” and “broth” are often used interchangeably in home cooking, there’s a subtle distinction worth noting. Vegetable stock is typically made by simmering vegetables in water without added salt, resulting in a more neutral base. Vegetable broth, on the other hand, is usually seasoned with salt during its preparation. For this recipe, either can be used effectively. If opting for broth, simply be mindful of its existing salt content and adjust the additional salt called for in the recipe to taste.

Crafting Your Creamy Vegan Vichyssoise: Step-by-Step

Follow these straightforward steps to create a wonderfully smooth and flavorful chilled leek and potato soup that will impress everyone.

Overhead shot of sliced leeks and diced onions sautéing in vegan butter in a large pot
Diced potatoes and seasonings (thyme, marjoram, garlic powder, pepper, bay leaves) added to sautéed leeks and onions in a pot
  • 1. Sauté the Aromatics to Perfection. Begin by melting the vegan butter in a spacious pot or Dutch oven over medium heat. Once shimmering, add the finely sliced leeks and diced yellow onion. Season them with a pinch of salt. Cook gently, stirring occasionally, for about 8-10 minutes, or until they become beautifully softened and translucent, but without browning. This step is crucial for building a sweet, aromatic base for your soup.
  • 2. Incorporate Potatoes and Seasonings. Stir in the peeled and diced Russet potatoes, ensuring they are evenly distributed. Next, add the dried thyme, dried marjoram, garlic powder, and ground black pepper. Don’t forget the bay leaves! Stir all the ingredients together thoroughly, allowing the potatoes to get a light coating of the aromatic spices.
  • 3. Simmer to Tenderness. Pour the vegetable stock into the pot, ensuring all the vegetables are submerged. Increase the heat to medium-high and bring the mixture to a gentle boil. Once boiling, reduce the heat to low, cover the pot, and let it simmer for 20-25 minutes. Continue cooking until the potatoes are fork-tender, indicating they are ready for blending. Turn off the heat and carefully remove and discard the bay leaves.
Close-up overhead shot of the cooked leek and potato soup in a pot before blending
The cooked soup mixture being transferred into a high-speed blender for puréeing
  • 4. Blend to Silky Smoothness. Carefully transfer the soup mixture from the pot to a high-speed blender. Blend on high until the soup is perfectly smooth and free of any lumps. Next, add the vegan sour cream to the blender and pulse briefly, just until it is fully incorporated into the soup. This step adds a crucial layer of creaminess and a delightful tang. Taste the soup and adjust the seasoning with additional salt and pepper as needed.
  • 5. Chill for Optimal Flavor and Texture. Allow the blended soup to cool down to room temperature. Once cooled, transfer it to an airtight container, such as mason jars. Refrigerate for at least 1-2 hours, or preferably longer, until the soup is thoroughly chilled. This chilling period is essential for the flavors to meld and for the soup to achieve its characteristic rich, thick consistency.
  • 6. Serve and Garnish. Ladle the perfectly chilled vegan vichyssoise into individual bowls. For a final touch of freshness and visual appeal, garnish generously with freshly chopped chives before serving. Enjoy this elegant and refreshing chilled leek and potato soup!

Expert Tips for the Best Vegan Vichyssoise

Achieving vichyssoise perfection is simple with these helpful tips:

  • Utilize a High-Speed Blender for Ultimate Smoothness: For the most exquisite, silky-smooth consistency that vichyssoise is famous for, a regular, high-speed blender is your best tool. While convenient, immersion blenders often leave behind small fibrous bits or lumps from the leeks and potatoes, which is not the desired texture for this elegant soup. A powerful countertop blender ensures a truly seamless purée.
  • Adjust Consistency to Your Liking: After blending and chilling, if your soup appears too thick or dense, don’t hesitate to thin it out. Simply whisk in a little more cold vegetable stock or even a splash of cold water, one tablespoon at a time, until you reach your preferred flowing, yet creamy, consistency.
  • Prioritize Chilling Time: The chilling period is not just a suggestion; it’s a critical step for developing the full flavor profile and achieving the ideal thick, luxurious texture. Allowing the vichyssoise to chill for a minimum of 1-2 hours, and ideally longer, gives the ingredients time to meld and deepen in flavor. It also ensures the soup is served at its refreshing best.
  • Proper Leek Cleaning: Leeks can hide a lot of grit! To clean them effectively, trim off the root end and the dark green tops. Slice the white and light green parts lengthwise, then rinse them thoroughly under cold running water, fanning out the layers to ensure all dirt is washed away.
  • Season Gradually: Start with the recommended salt quantity, but remember to taste and adjust after blending and chilling. Flavors intensify as the soup cools, so it’s best to make final seasoning adjustments just before serving.
Overhead view of two pristine white bowls filled with vegan vichyssoise, garnished with fresh green chives.

Exciting Vegan Vichyssoise Variations to Explore

While the classic vegan vichyssoise is perfect as is, these variations offer creative ways to customize and enhance its delicate flavors:

  • Roasted Garlic Vichyssoise: For an even deeper, more complex flavor profile, consider incorporating roasted garlic. Roast a whole head of garlic until soft and caramelized, then squeeze the cloves out and blend them into the soup with the leeks and potatoes. Roasted garlic adds a sweet, nutty richness that beautifully complements the other ingredients.
  • Herb-Infused Vichyssoise: Elevate the freshness by blending in a handful of fresh herbs. Fresh parsley, tarragon, or chervil can be added during the final blending stage for a lovely light green hue and a vibrant, herbaceous flavor. Start with a small amount and add more to taste.
  • Asparagus Vichyssoise: Introduce a seasonal twist by adding fresh or frozen asparagus. Simply add asparagus spears to the pot during the last few minutes of the simmering process, allowing them to become tender before blending. This variation adds a subtle sweetness and a beautiful green color.
  • Spicy Kick Vichyssoise: For those who enjoy a bit of heat, a tiny pinch of white pepper or a dash of cayenne pepper can add a subtle warmth without overwhelming the delicate flavors. Stir it in after blending and adjust to your preference.
  • Smoky Vichyssoise: A hint of smoked paprika or a drop of liquid smoke can impart a delightful smoky depth, adding an unexpected layer of flavor that works wonderfully with the potatoes and leeks.

Delightful Serving Suggestions for Vegan Vichyssoise

Vichyssoise is incredibly versatile and can be served in various ways, from an elegant starter to a satisfying light meal:

  • Classic Appetizer: Serve small portions in elegant shot glasses or demitasse cups for a sophisticated dinner party starter.
  • Light Lunch Pairing: For a fulfilling light lunch, pair a generous bowl of vichyssoise with a side of crusty bread. My homemade olive bread would be an excellent choice, or consider a fresh, crisp salad like my easy vegan Caesar salad with coconut bacon.
  • French-Inspired Vegan Meal: Create a truly French-themed plant-based feast by serving vichyssoise alongside other vegan French delights. It pairs wonderfully with a slice of my easy vegan quiche or even a light vegetable tart.
  • Garnish Galore: While fresh chives are traditional, feel free to get creative with garnishes. A swirl of vegan crème fraîche, a sprinkle of paprika, crispy fried leek slivers, or even a few delicate edible flowers can add an extra touch of gourmet appeal.
Two white bowls of creamy vegan vichyssoise, garnished with fresh green chives, on a rustic wooden surface.

Storing Your Vegan Vichyssoise

Should you find yourself with any delicious leftovers, proper storage is key to maintaining freshness. Transfer any remaining soup to an airtight container immediately after it has cooled to room temperature. Refrigerate it promptly. Your vegan vichyssoise will keep beautifully in the refrigerator for up to 3-4 days. Before serving chilled leftovers, give the soup a good stir, as some natural separation might occur during storage. This will restore its smooth, even consistency.

Can I Freeze This Vegan Vichyssoise?

Unfortunately, potatoes, especially when puréed into a creamy soup, do not freeze well. Freezing can cause them to become grainy or watery upon thawing, compromising the signature velvety texture of vichyssoise. Therefore, I highly recommend enjoying this recipe fresh or keeping it refrigerated for no more than 3-4 days. It’s best made and consumed within this timeframe to fully appreciate its smooth consistency and delicate flavors.

Overhead view of two bowls of vegan vichyssoise on a white tabletop, with a small spoon in one bowl.

More Irresistible Vegan Soup Recipes

If you’re a fan of comforting and flavorful vegan soups, you’re in luck! Here are some more of my favorite plant-based soup recipes to warm your soul and tantalize your taste buds:

  • Hearty Vegan Cheeseburger Soup
  • Comforting Cabbage Roll Soup
  • Flavorful Tomato Tortellini Soup
  • Rich & Creamy Butternut Squash Soup
  • Velvety Roasted Cauliflower Soup

Enjoy, friends! If you try this exquisite vegan vichyssoise recipe, please capture a photo and share it by tagging #jessicainthekitchen on Instagram! We would also be absolutely delighted if you could leave a comment below and give the recipe a well-deserved rating. Your feedback means the world to us!

Overhead view of two bowls of vegan vichyssoise

Vegan Vichyssoise (Chilled Leek and Potato Soup)

Servings: 6 servings
Prep Time: 15 minutes
Cook Time: 30 minutes
Chilling Time: 1 hour 30 minutes
Total Time: 2 hours 45 minutes
This vegan vichyssoise is a smooth, velvety, and delicately flavored chilled leek and potato soup. It’s a classic French dish made dairy-free and incredibly easy to prepare at home, perfect for an elegant appetizer or light meal.

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Ingredients

  • 2 tablespoons vegan butter, 28 grams
  • 3 leeks, white and light green parts only, thoroughly cleaned and sliced
  • 1 yellow onion, diced
  • ½ teaspoon salt, 3 grams, plus more to taste
  • 4 russet potatoes, peeled and uniformly diced
  • ½ teaspoon dried thyme, ½ gram
  • ½ teaspoon dried marjoram, ⅓ gram
  • 1 teaspoon garlic powder, 3 grams
  • ¼ teaspoon ground black pepper, ½ gram, plus more to taste
  • 2 bay leaves
  • 4 cups vegetable stock, 950 ml, plus more if needed for consistency
  • ½ cup vegan sour cream, 113 grams
  • Chopped fresh chives, for garnish

Instructions 

  • In a large pot or Dutch oven, melt the vegan butter over medium heat. Add the cleaned and sliced leeks along with the diced yellow onion. Season with ½ teaspoon of salt and sauté for 8-10 minutes, stirring occasionally, until they are softened and translucent, but not browned.
  • Stir the peeled and uniformly diced Russet potatoes into the pot. Add the dried thyme, dried marjoram, garlic powder, and ¼ teaspoon of ground black pepper, along with the bay leaves. Stir thoroughly to coat the vegetables evenly with the seasonings.
  • Pour the 4 cups of vegetable stock into the pot, ensuring all ingredients are mostly submerged. Increase the heat to medium-high and bring the mixture to a boil. Once boiling, reduce the heat to low, cover the pot, and let it simmer gently for 20-25 minutes, or until the potatoes are completely fork-tender. Turn off the heat and carefully remove and discard the bay leaves.
  • Carefully transfer the contents of the pot to a high-speed blender. Blend on high until the soup is perfectly smooth and creamy, with no lumps. Then, add the ½ cup of vegan sour cream to the blender and blend again briefly, just until it is fully incorporated and the soup is uniform.
  • Taste the soup and adjust the seasoning with additional salt and pepper as desired. Remember that flavors can deepen and change slightly when chilled.
  • If you prefer a thinner soup after blending, feel free to blend in a bit of extra cold vegetable stock, one tablespoon at a time, until you achieve your desired consistency.
  • Allow the soup to cool completely to room temperature. Once cooled, transfer it to an airtight container (such as mason jars) and refrigerate for at least 1-2 hours, or until thoroughly chilled. This is crucial for developing the best texture and flavor.
  • Serve the chilled vegan vichyssoise in bowls, garnished generously with freshly chopped chives. Enjoy!

Notes

Storage Tips: Transfer any leftover vegan vichyssoise to an airtight container and refrigerate immediately after it has cooled. It can be stored in the refrigerator for up to 3-4 days. It’s normal for some slight separation to occur during storage; simply stir well before serving to restore its smooth consistency.
Freezing Advisory: This recipe is not recommended for freezing. Potatoes tend to become grainy and watery when frozen and thawed, which would compromise the luxurious, velvety texture that is characteristic of classic vichyssoise. For the best experience, enjoy it fresh or within a few days of preparation.
Calories: 237kcal, Carbohydrates: 42g, Protein: 5g, Fat: 7g, Saturated Fat: 2g, Polyunsaturated Fat: 3g, Monounsaturated Fat: 1g, Trans Fat: 0.02g, Sodium: 1010mg, Potassium: 708mg, Fiber: 3g, Sugar: 6g, Vitamin A: 1262IU, Vitamin C: 15mg, Calcium: 52mg, Iron: 2mg

Disclaimer: Although jessicainthekitchen.com attempts to provide accurate nutritional information, kindly note that these are only estimates. Nutritional information may be affected based on the product type, the brand that was purchased, and in other unforeseeable ways. Jessicainthekitchen.com will not be held liable for any loss or damage resulting for your reliance on nutritional information. If you need to follow a specific caloric regimen, please consult your doctor first.

Cuisine: French
Course: Appetizer, Light Lunch, Soup
Author: Jessica Hylton