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Creamy Cauliflower Leek Soup without Potatoes

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Packed with flavors and vegan, this creamy Cauliflower Leek Soup without Potatoes warms you up with a few simple ingredients.

Whether you don’t have potatoes in your pantry or you try to avoid them, this soup will surprise you with its smooth texture and unique taste. The fresh flavors of cauliflower and celery root contribute to the right consistency and offer a unique and flavorful alternative to potatoes. With just a few ingredients, this soup is quickly prepared, making it perfect for a speedy weeknight dinner or lunch.

How to make leek soup without potatoes

Why I Love This Vegan Recipe

  • Quick and easy to prepare with just an immersion blender.
  • Requires only a handful of ingredients, plus seasoning.
  • Nutritious and comforting soup that offers the ultimate comfort.
  • Suitable for a low-carb and vegan diet.
  • You will love how creamy without any heavy cream this soup is.
  • It’s an excellent leek recipe, especially during the season.
  • A great method to sneak in vegetables discreetly
  • Provides versatile serving options; see the note below.
how to make leek soup with no potatoes

Cauliflowers instead of potatoes?

The traditional potato leek soup is a classic French dish often made with onions, potato and leek, served as a first course or as a light meal. The cooked and blended potatoes thicken the soup with their natural starches, giving it a creamy and velvety texture. In terms of flavor, they contribute a subtle, earthy taste to the potato soup.

We can achieve a creamy consistency in the leek and cauliflower soup by using cauliflower instead of potatoes. However, incorporating celery root into the mix adds flavor to the soup. Celery root brings a lovely mild celery flavor with a delightful hint of nuttiness, making this cauliflower and leek soup special, even without potatoes! Moreover, celery and cauliflower are low in carbohydrates, making them ideal for a ketogenic diet or for individuals aiming to lower blood sugar levels.

Some people who dislike the taste of celery I suggest using parsnip instead.

Ingredients

Simple Ingredients for the best leek soup

Cauliflower – Use either a very small cauliflower or half of it; you can ferment the other half. 

Leek – both parts of the leek, the green and white, are edible. Just remove the wooden end and dark green parts. The green part is tastier and richer in Vitamin C. 

Celery root – while there are better-looking pieces of vegetables, celery root is great in soups as it’s packed with flavor.

Onions – you can also use green onions.

Garlic cloves – Adjust to taste. I used two garlic cloves, but if you like a strong flavor, use more garlic. Or leave it out or replace it with garlic powder. 

Vegetable broth – I like to buy organic that is free of pesticides and GMOs. I also check that it is free of MSG, natural flavorings, or dehydrated vegetables. If you prefer to make it from scratch, check out how to make the vegetable stock correctly.

vegetable oil

seasoning for the soup

For seasoning

Thyme, Rosemary, Nutmeg, Ginger, Parsley, Bay leaves, Salt and pepper

Tools

Use an immersion blender or regular blender to achieve a deliciously creamy texture.

Large soup pot or Dutch oven