Red Lentil Soup

This red lentil soup recipe is cozy, flavorful, and bright with lemon. Easy to make with simple ingredients, it's a delicious, healthy one-pot meal.

Red lentil soup

This red lentil soup recipe is exactly what I’m craving these days. It’s cozy and warming, but nourishing too. Blended red lentils thicken the broth (no cream here!) and give each bowl a boost of plant-based protein. Aromatic veggies and cumin add earthy depth of flavor. This red lentil soup is healthy and delicious.

The recipe is inspired by Turkish red lentil soup, which is one of my favorite dishes to order at Middle Eastern restaurants. Unlike lentil soup made with green or brown lentils, it has a vibrant orange-yellow color and bright, lemony taste. On a cold winter day, it’s a perfect pick-me-up!

This red lentil soup is easy to make with basic pantry ingredients. Simple, filling, and flavorful, it’s a great recipe to have in your back pocket at this time of year. I hope you love it as much as I do!

Red lentil soup recipe ingredients

Red Lentil Soup Ingredients

Here’s what you’ll need to make this red lentil soup recipe:

  • Red lentils, of course! The red lentils fall apart as they cook, giving the soup a thick, creamy consistency. Green or brown lentils will not work here. If you have those, go check out this lentil soup recipe instead!
  • Onion, garlic, carrot, and celery – These aromatic veggies create the soup’s flavorful base.
  • Yukon Gold potato – For texture.
  • Ground cumin – For earthy depth of flavor.
  • Cayenne pepper – For heat. Skip it if you’re sensitive to spice, or substitute a pinch of mild chili powder.
  • Vegetable broth and water – You’ll need 5 to 6 cups of liquid to make this soup recipe. The exact amount will depend on how much liquid your lentils absorb. I call for 4 cups broth and 1 to 2 cups water because most store-bought stock comes in 4-cup boxes. If you have extra stock on hand, or if you’re using homemade vegetable broth, feel free to replace the water with additional broth.
  • Fresh lemon juice – It gives the soup a delicious bright finish.
  • Extra-virgin olive oil – It adds lovely richness. Use some in the soup, and serve it with another drizzle of oil on top.
  • Fresh parsley – For garnish. You could technically skip it, but I love the freshness it adds to this simple soup. Fresh cilantro would be nice here too.
  • And salt and pepper – To make all the flavors pop!

Find the complete recipe with measurements below.

Sautéing onion, carrot, celery, and potato in soup pot

How to Make Red Lentil Soup

This red lentil soup recipe has three simple steps:

  1. Sauté
  2. Simmer
  3. Blend

Start by sautéing the aromatics. Heat the olive oil in a large pot over medium heat. Add the onion, carrot, and celery and cook until soft, about 8 minutes. Stir in the potato, garlic, cumin, and cayenne and cook for another minute.

Adding red lentils to pot of soup

Next, simmer the soup. Add the lentils, broth, and 1 cup water to the pot. Bring to a simmer and cook, uncovered, for 30 minutes, or until the potatoes and lentils are tender.

Then, blend. The trick to this red lentil soup recipe is only partially blending the soup. The blended lentils and potatoes will give it a nice creamy consistency, while the remaining whole potatoes and other veggies will leave a bit of texture.

An immersion blender is perfect for this, but you could use an upright blender too. If you’re going that route, transfer most of the soup to a blender and blend until smooth. Then, add it back to the pot with the remaining chunky soup.

Finally, season and serve. Stir in the lemon juice and season to taste with salt and pepper. Serve topped with a drizzle of olive oil and fresh parsley.

Enjoy!

Recipe Tips

  • Stop blending before it’s totally smooth. I like to blend some of the lentils and potatoes in this soup to make the broth thick and creamy. But I don’t totally puree it—leaving some chunks gives the soup a satisfying texture. An immersion blender is perfect for this!
  • Add more water for a thinner soup. I list a range of water in this recipe. You may need less or more depending on how much water your lentils absorb. Start on the low end and stay there for a thick red lentil soup. Add more water for a thinner one. The final texture is up to you!
  • Make it your own. I love this recipe as written, but it’s flexible. Feel free to make it your own! Try replacing the cumin with ground coriander or paprika, or experiment with sweet potato instead of the yellow potato or carrot. Add a couple tablespoons of tomato paste for a bolder color and tangier flavor, or dump in a can of diced tomatoes. Just don’t skip the lemon juice. Its bright, tangy flavor takes this recipe over the top.

Using immersion blender to partially blend red lentil soup

What to Serve with Red Lentil Soup

I love to serve this red lentil soup with crusty bread and a simple salad. Any of these salad recipes would pair nicely with it:

Storage and Reheating

Leftovers keep well in an airtight container in the refrigerator for up to 4 days. You can also freeze this soup for up to 3 months.

The soup will thicken after a day or two in the fridge, so you may need to stir in a little water to thin it when you reheat.

Red lentil soup recipe

More Favorite Soup Recipes

If you love this red lentil soup, try one of these easy soup recipes next:

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Red Lentil Soup

rate this recipe:
4.91 from 150 votes
Prep Time: 10 minutes
Cook Time: 40 minutes
Total Time: 50 minutes
Serves 6
This red lentil soup recipe is flavorful, comforting, and easy to make! Simple ingredients like red lentils, onions, cumin, and lemon juice give it a lovely creamy texture and bright, earthy flavor. Leftovers freeze well! Vegan and gluten-free.

Ingredients

Instructions

  • Heat the olive oil in a large pot or Dutch oven over medium heat. Add the onion, carrot, celery, salt, and several grinds of pepper. Cook, stirring occasionally, for 8 minutes, or until the vegetables are soft.
  • Stir in the potato, garlic, cumin, and cayenne and cook, stirring, for 1 minute. Add the lentils, broth, and 1 cup water. Simmer for 30 minutes, or until the lentils and potatoes are soft.
  • Remove from the heat and use an immersion blender to blend until mostly smooth. (Alternatively, blend the soup in an upright blender.) If the soup is too thick, add the remaining 1 cup water.
  • Add the lemon juice and season to taste with more salt and pepper as desired. Ladle into bowls and serve topped with a drizzle of olive oil and chopped fresh parsley.

208 comments

4.91 from 150 votes (52 ratings without comment)

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Rate this recipe (after making it)




  1. Laurel Leaf
    01.18.2025

    4 stars
    This was a very tasty red lentil soup. The potatoes add some heartiness and the lemon gives it a fresh and bright finish.

  2. Samantha
    01.18.2025

    5 stars
    This was exactly the kind of winter comfort we were craving. We paired this with a cozy grilled veg and cheese sandwich for the ultimate yum!

  3. Siri
    01.18.2025

    5 stars
    This was absolutely delicious! So hearty, filling, and super easy to make. I stirred in some chopped spinach for an extra veggie boost, and it worked perfectly. This recipe is definitely going into my regular rotation—thank you for sharing!

  4. Mark Russell
    01.18.2025

    5 stars
    Made this absolutely fantastic warming red lentil soup and I have to confirm it’s keeping me warm during these frosty January cold days. Works a treat for lunches. All the family just want more.

  5. Megan
    01.18.2025

    4 stars
    Even my picky husband enjoyed the soup. I added a bit more spice and left it a bit chunky for some texture. I would make again.

  6. Monica
    01.18.2025

    Love your recipes! This one was simple enough to make with my 2 & 4 year old boys. They insisted on stirring and adding to the pot. It was a great lesson, and a great meal to dip crusty bread in!

    thanks!

  7. KJ
    01.17.2025

    5 stars
    Loved this recipe! We opted to mash the potatoes once cooked to help thicken the soup, but left the rest of the veg whole for some toothsome goodness. Next week will add kale + stems for us crispy crunchy texture fans.

  8. Anne
    01.17.2025

    5 stars
    This was so yummy! Will add to our winter dinner rotation.

  9. Heidi Riehl
    01.17.2025

    4 stars
    This soup was perfect after a walk on a cold day. I topped it with a little sriracha for some extra heat. Delicious!

  10. Mimi Potts
    01.17.2025

    4 stars
    Loved the soup however I feel it needed more seasoning – salt and Mrs. Dash. No additional water was necessary. Also it made only enough for 2 dinner servings. Will definitely make again.

  11. Rebekah
    01.17.2025

    5 stars
    What a simple and delicious soup! I found that the potatoes and lentils were tender at around 15 minutes.

  12. Susy Da Silva
    01.17.2025

    5 stars
    A lovely soup. It’ll be added to the soup rotation.

  13. Susan
    01.17.2025

    5 stars
    Delicious! We topped it with crispy roasted chickpeas (another L&L recipe).

    • Phoebe Moore (L&L Recipe Developer)
      01.17.2025

      I’m so glad you loved the soup, Susan!

  14. Patricia Bowers
    01.17.2025

    5 stars
    My mom and I made this the other day for lunch and it was amazing!! For sure going in the family cookbook. So many veggies!

    • Phoebe Moore (L&L Recipe Developer)
      01.17.2025

      I’m so glad you loved it, Patricia!

  15. Michelle
    01.17.2025

    5 stars
    Prefect for a winter night dinner.

    • Phoebe Moore (L&L Recipe Developer)
      01.17.2025

      So glad you enjoyed it, Michelle!

  16. Jane
    01.17.2025

    Wow! I made exactly to recipe and I wouldn’t change a thing. It’s hard to find something hearty yet bright in the winter, but this hits the spot. I only wish I’d made a double batch!

    • Phoebe Moore (L&L Recipe Developer)
      01.17.2025

      Hi Jane, I’m so glad you loved the soup!

  17. Terri
    01.17.2025

    Made the red lentil soup last night. It came it out with a nice thick creamy-likeness. Perfect for a cold night here in Florida. Added some spinach in at the end. Served with some homemade habanero-jalapeno cheese bread. Def would make again. Might top off with some chili-crisp next time.

    • Phoebe Moore (L&L Recipe Developer)
      01.17.2025

      Hi Terri, I’m so glad you loved the soup. That bread sounds fabulous!

  18. Hannah B
    01.16.2025

    I made this soup for dinner tonight. It was delicious and perfect for a chilly winter night! We had grilled cheese croutons on top. Even my toddler loved it!

    • Phoebe Moore (L&L Recipe Developer)
      01.17.2025

      Hi Hannah, I’m so glad everyone loved it! The grilled cheese croutons sound amazing.

  19. Shelly L
    01.16.2025

    5 stars
    I made this last night and it was easy and so delicious! We like spice so I did add in a bit more cayenne after I blended. The fresh lemon juice and parsley were perfect compliments. I served with a kale salad and some ciabatta slices. Thank you!

    • Phoebe Moore (L&L Recipe Developer)
      01.17.2025

      That sounds like a great meal, Shelly! I’m so glad you enjoyed the soup.

  20. Tova T
    01.16.2025

    I just made this and it tastes so good and was super easy to make. I added fresh spinach at the end… because why not?

    • Phoebe Moore (L&L Recipe Developer)
      01.17.2025

      Great add, Tova! So glad you enjoyed the soup.

A food blog with fresh, zesty recipes.
Photograph of Jeanine Donofrio and Jack Mathews in their kitchen

Hello, we're Jeanine and Jack.

We love to eat, travel, cook, and eat some more! We create & photograph vegetarian recipes from our home in Chicago, while our shiba pups eat the kale stems that fall on the kitchen floor.