Creamy Leek Soup without Potatoes

Posted on January 2, 2026

by: Amelia Grace

Bowl of creamy leek soup without potatoes, garnished with herbs.

There’s something beautifully cozy about a pot of soup simmering on the stove, especially when it’s a heartwarming leek soup without potatoes. Did you know that leeks offer a treasure trove of nutrients, including vitamins A, C, and K, plus antioxidants? As the fragrant aroma of sautéing leeks, garlic, and herbs weaves through your kitchen, you can’t help but feel comforted. In under an hour, you can whip up a wholesome dish that not only warms your body but also nourishes your soul. Let’s dive into this delightful recipe, shall we?

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creamy leek soup without potatoes 2026 01 02 191128 1

Heartwarming Leek Soup without Potatoes


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  • Author: james-carter
  • Total Time: 45 minutes
  • Yield: 4 servings 1x
  • Diet: Vegan

Description

A deliciously light and nourishing leek soup, perfect for comforting meals without the heaviness of potatoes.


Ingredients

Scale
  • 3 leeks (washed and thinly sliced)
  • 3 ribs celery (thinly sliced)
  • 1 small onion (diced)
  • 2 large parsnips (trimmed, peeled, chopped)
  • ½ teaspoon sea salt
  • ½ teaspoon white pepper
  • ½ teaspoon turmeric
  • 3 cloves garlic (roughly chopped)
  • 1 head cauliflower (roughly chopped)
  • 8 cups vegetable stock
  • 8 sprigs fresh thyme (or 1 teaspoon dried thyme)
  • 1 tablespoon light miso paste (whisked into ½ cup warm water)

Instructions

  1. Slice leeks in half lengthwise and wash, then thinly slice.
  2. Slice celery and dice onion; peel, trim, and chop parsnips; chop cauliflower; and smash garlic cloves to peel and roughly chop.
  3. In a large stock pot, sauté leeks, onion, celery, parsnips, salt, pepper, and turmeric over medium heat for 5-7 minutes until softened.
  4. Add garlic and continue to sauté for 1 minute until fragrant.
  5. Stir in cauliflower and vegetable stock, adding water if necessary to cover veggies. Toss in thyme sprigs and bring to a boil.
  6. Reduce heat to a gentle simmer, cover, and cook for about 20 minutes until cauliflower is fork-tender.
  7. Whisk miso into warm water until dissolved, then stir into the pot of soup.
  8. Remove thyme stems and puree the soup using an immersion blender or in batches using a food processor.
  9. Adjust seasoning with salt and pepper as needed, and serve. Consider garnishing with sliced green onions and red pepper flakes.

Notes

This soup can be stored in an airtight container in the fridge for up to 4 days or frozen for up to 3 months.

  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Category: Soup
  • Method: Cooking
  • Cuisine: Healthy

Nutrition

  • Serving Size: 1 serving
  • Calories: 120
  • Sugar: 3g
  • Sodium: 400mg
  • Fat: 0.5g
  • Saturated Fat: 0g
  • Unsaturated Fat: 0g
  • Trans Fat: 0g
  • Carbohydrates: 20g
  • Fiber: 5g
  • Protein: 3g
  • Cholesterol: 0mg

Why This Leek Soup without Potatoes Never Fails

This leek soup without potatoes is a game-changer for those days when you crave something light yet satisfying. The beauty of this recipe lies in its simplicity and the way it highlights the delicate sweetness of leeks. With layers of flavor from garlic, thyme, and miso, you’ll discover a depth that makes every spoonful a delight. Plus, without the potatoes, the soup maintains a lightness that’s perfect for any meal or even as an appetizer.

Ingredient Lineup

  • 3 leeks (washed and thinly sliced)
  • 3 ribs celery (thinly sliced)
  • 1 small onion (diced)
  • 2 large parsnips (trim, peel, chop)
  • ½ teaspoon sea salt
  • ½ teaspoon white pepper
  • ½ teaspoon turmeric
  • 3 cloves garlic (roughly chopped)
  • 1 head cauliflower (roughly chopped)
  • 8 cups vegetable stock
  • 8 sprigs fresh thyme (or 1 teaspoon dried thyme)
  • 1 tablespoon light miso paste (whisked into ½ cup warm water)

From Pan to Plate

  1. Prepare veggies: Slice leeks in half lengthwise, ensuring you wash and dry them thoroughly. Then thinly slice the leeks. Slice the celery and dice the onion. Peel, trim, and chop the parsnips. Roughly chop the cauliflower, and smash the garlic cloves to peel and roughly chop them.
  2. Sauté the base: In a large stock pot, sauté the leeks, onion, celery, parsnips, salt, pepper, and turmeric over medium heat until the vegetables soften—approximately 5-7 minutes. If they start to stick, using a splash of water or a drizzle of olive oil can help prevent this.
  3. Add garlic and cauliflower: Stir in the garlic until fragrant, about 1 minute. Then, add the cauliflower and vegetable stock. If the stock doesn’t cover the veggies, feel free to add enough water to do so. Toss in the thyme sprigs, and bring to a boil.
  4. Simmer the soup: Once boiling, reduce the heat to maintain a gentle simmer. Cover and allow it to cook for about 20 minutes until the cauliflower pierces easily with a fork.
  5. Whisk in miso: In a small bowl, whisk the miso into ½ cup of warm water until dissolved. Stir this mixture into your pot of soup.
  6. Blend to perfection: Remove the thyme stems, then puree the soup using an immersion blender or in batches using a food processor. If you prefer a chunkier texture, blend to your liking.
  7. Season and serve: Taste the soup and adjust the seasoning with salt and pepper as needed. Kids love garnishing their bowls with sliced green onions and a sprinkle of crushed red pepper for a bit of zing!

Nutrition Breakdown

This leek soup without potatoes is not only delicious but also impressively nutritious. Each serving (about 1 cup) contains approximately 120 calories, with 3 grams of protein, 20 grams of carbohydrates, 0.5 grams of fat, and 5 grams of fiber. The fiber content helps with digestion, while the vitamins from the leeks and parsnips support overall health. It’s a comforting way to incorporate more veggies into your diet!

Perfect Pairings

Serving this soup is as easy as it is delicious. Ladle it into warm bowls, and add a sprinkle of fresh herbs or a drizzle of olive oil for presentation. Consider pairing it with a crusty whole-grain bread or a simple side salad. It’s fantastic for a light lunch or as a first course in a cozy dinner spread.

How to Store It Right

Store any leftovers in an airtight container in the fridge for up to 4 days. For longer storage, transfer the soup to a freezer-safe container and freeze for up to 3 months. To reheat, thaw overnight in the fridge before gently warming on the stove. A splash of water or broth can help loosen the soup if it thickens too much while freezing.

Expert Tips

  1. Veggie Variety: You can swap in other vegetables like zucchini or carrots based on your preference or what you have on hand.
  2. Miso Magic: Adding miso not only enhances umami but also provides gut-friendly probiotics—just don’t boil it once added to retain those benefits.
  3. Smoothness Secrets: For an ultra-smooth texture, strain the soup before blending or blend in batches carefully.
  4. Flavor Freeze: When freezing, add a little lemon juice before serving to brighten the flavors post-thaw.
  5. Garnish with Flair: Experiment with garnishes like pomegranate seeds or toasted seeds for a bit of crunch and color!

Flavor Experiments

  1. Gourmet Twist: Add a splash of white wine while sautéing the veggies for a sophisticated touch.
  2. Seasonal Variation: Try incorporating fresh asparagus in the spring for a delightful seasonal twist.
  3. Playful Option: Stir in some cooked quinoa or lentils for added protein and a fun texture contrast.

Learn from My Mistakes

  1. Burnt Base: Always watch the heat level when sautéing the base. If veggies start to brown too quickly, reduce the heat and add a splash of broth.
  2. Overcooked Cauliflower: Keep an eye on the cauliflower as it cooks; overcooking it can result in a mushy texture. Aim for fork-tender.
  3. Underseasoning: Taste as you go! Underseasoning is a common mistake with soups—regularly checking ensures a balanced flavor.
  4. Ignoring Texture: If you want texture, don’t blend it all; leave some chunks for a satisfying bite.
  5. Miso Mishap: Remember to whisk miso into warm water first. Adding it directly to hot soup can cause it to clump.

What to Do with Leftovers

  1. Soup Pasta: Turn leftover soup into a hearty sauce for pasta. Just toss it with cooked noodles and enjoy!
  2. Savory Frittata: Use the soup as a base for a frittata by blending it up and mixing with eggs for a delicious breakfast.
  3. Vegetable Sauce: Purée the leftovers and use them as a base for a vegetable pizza sauce—every bite will be packed with flavor!

Quick Questions

What can I substitute for leeks? You can swap leeks for onions or green onions, but note that flavors will differ slightly.

How do I make leek soup creamy without dairy? Blend in some soaked cashews or coconut milk for a creamy texture sans dairy.

Can I use frozen veggies instead? Yes, you can use frozen leeks and cauliflower, just adjust the cooking time as frozen veggies can cook faster.

Is this soup freezer-friendly? Absolutely! Just ensure it’s stored in airtight containers and consume it within 3 months for the best flavor and quality.

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