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.
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 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.
How to Make Red Lentil Soup
This red lentil soup recipe has three simple steps:
- Sauté
- Simmer
- 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.
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.
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.
More Favorite Soup Recipes
If you love this red lentil soup, try one of these easy soup recipes next:
- Best Lentil Soup
- Instant Pot Lentil Soup
- Minestrone Soup
- Or any of these 35 Best Soup Recipes!
Red Lentil Soup
Ingredients
- 3 tablespoons extra-virgin olive oil, plus more for drizzling
- 1 medium yellow onion, chopped
- 1 medium carrot, diced
- 1 celery rib, chopped
- ½ teaspoon sea salt, plus more to taste
- Freshly ground black pepper
- 1 small Yukon Gold potato, diced
- 2 garlic cloves, chopped
- 1 teaspoon ground cumin
- Pinch cayenne pepper
- 1 cup dried red lentils, rinsed
- 4 cups vegetable broth
- 1 to 2 cups water
- 2 tablespoons fresh lemon juice
- Chopped fresh parsley, for garnish
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.
So nice to have a quick soup, with so much flavor and nutrition!
I’m so glad you loved it!
Delicious! I didn’t blend my soup and it was still great. Excellent for lunch left overs
I’m glad you enjoyed!
Delicious! So easy. My husband and I had a nice time getting it together. It has a nice heat for our few cold nights here in Florida.
I’m so glad you both loved it!
Simple and delicious! I added a couple small sweet potatoes because we had them on hand. This would be great served in shot glasses as an appetizer, or in a big bowl with some crusty bread.
So glad you loved it, Alyssa!
I love this filling and tasty recipe! I used green lentils in a pinch- the color wasn’t as pretty as with red lentils but it still tasted great!
I’m glad you enjoyed it!
Loved this soup! Kept it thick and added 2 carrots, 2 celery stalks and a large onion. The lemon juice was the perfect addition. Looking forward to having it tomorrow, too!
I’m glad you enjoyed it!
This soup is tasty! Also it is really easy to make! I will definitely make it again.
I’m so glad you enjoyed it!
This soup is so delicious!! I made it with a sweet potato and loved it. Thank you!!
Love that idea – I’m glad you enjoyed it!
Delicious and cozy on a cold night. The lemon juice at the end added a lot! Will make again.
I’m so glad you enjoyed it!
I was planning on making this soup even before the Jan cooking club challenge! It was so easy to make and so delicious! Even my husband, who believes soup should have chunks and meat, LOVED it. So much flavor and just right as the temps are freezing!
Hi Susan, ha ha, I’m glad you both loved it!
As fast to put together as promised and absolutely delicious. Creamy and very filling. Some of the family added some shaved parmesan and others of us added a bit of chipotle infused olive oil to give the soup some kick. Definitely one to keep in the rotation.
oh yum, I’m glad you enjoyed it!
Great weeknight supper! I didn’t have celery and subbed green onions. Thanks!
I’m so glad you loved it!
Made this soup my own with lots of extra celery. The scent the filled the kitchen as the soup cooked was life -giving.
I’m so glad you loved it!
I made this for our supper tonight, and it was a hit. Simple, nourishing and so good. I love that it’s so versatile too. We grew sweet potatoes last year, so next time I’ll use some of them.
I made this delicious Red Lentil Soup for dinner tonight. It was a hit! Perfect for a chilly night. I will definitely make this again real soon.
This recipe was incredible! I’ve been trying to incorporate more lentils into my diet but I never really knew what to do with them. I will for sure be making this recipe again!
Loved it! I used curry powder instead of cumin and served it over rice like a lentil curry-yum!!
Delicious. Simple and quick. Will definitely make again.
This recipe was simple, fast, and delicious! I tasted the broth before the lentils had time to deepen the flavor and was a little worried, but if you have the same experience, trust the process and the flavor will even out beautifully.
I love lentils so I had to try this. Very tasty, nice heat (I used 1/4 tea.) and lots of good flavors. Healthy too!