Description
This easy lentil soup recipe is a family favorite! It’s super flexible and always delicious. You’ll need 6 cups liquid total, use up any stock or broth you have on hand with water if needed (e.g. 3 cups stock with 3 cups water). The more stock you use, the more flavor it will have. See the recipes notes for ideas and flexible substitutions. If you like this lentil soup recipe, please leave a star rating in the comments below for other readers in our community (thank you!).
Ingredients
- 1-quart vegetable stock (chicken stock or bone broth)
- 2 cups filtered water
- 1.5 cups lentils, rinsed (soaking is optional)
- 3 tablespoons extra virgin olive oil
- 1 small yellow or white onion, finely chopped
- 2 celery ribs, finely chopped
- 1 large carrot, finely chopped or grated
- 3–4 cloves garlic, finely chopped or pressed
- 1 teaspoon ground cumin
- ½ teaspoon dried oregano
- 1 bay leaf
- 1 tablespoon red wine vinegar (aged balsamic also works)
- 1 teaspoon sea salt (I use Real Salt), more or less to taste
- ½ teaspoon freshly ground black pepper (about 5 spins in a pepper grinder)
- Optional: 2 tomatoes, seeded and chopped (or one 12 oz can organic diced tomatoes)
- Optional: Any greens you’d like to add; look for something in season and at a good price at the store. Spinach is always a great option and has a mild flavor. We like 1 handful of greens per serving.
Instructions
- Spread the lentils out on a large sheet tray and pick out any debris (aka anything that doesn’t look like a lentil.) Legumes are harvested and stored in large quantities and sometimes little rocks or other things make their way in the bag. Rinse your lentils well in a fine-mesh strainer before using.
(Pre-soaking really depends on personal preference; it helps soften the lentils faster but is not always necessary. I typically do not presoak my lentils. If you want to soak, pour the lentils into a large bowl and cover with purified water by 2 inches. If you’ve thought ahead enough, cover the bowl with a kitchen towel and leave it on the counter for 12-24 hours. Drain the lentils and rinse them well before using.) - Heat the olive oil over medium heat in a large soup pot or Dutch oven. Add the chopped onion, carrot, and celery with a big pinch of sea salt and cook until tender, about 5-6 minutes.
- Lower the heat down to medium-low (to prevent the garlic from burning) and add the garlic, cumin, oregano, another pinch of salt, and a few spins of freshly ground black pepper. Stir and let cook another 2-3 minutes until the mixture is very fragrant. (Be careful not to burn the garlic–turn the heat down to low if necessary as garlic burns easily.)
- Add the bay leaf, 1 teaspoon of salt, a few more spins of black pepper, stock, water, and rinsed lentils to the pot and bring to a full boil, then reduce the heat to a simmer. The amount of salt you need will depend on what type of stock you use; start with one teaspoon and add more later to taste if desired. If your stock is not salted you may need up to two (or more) teaspoons).
- Add the tomatoes (if using) and let the pot simmer for about 40-50 minutes or until the lentils are soft. Once the lentils are soft, turn off the heat and stir in the vinegar. Discard the bay leaf before pureeing and serving.
- Depending on how you like the texture, use a handheld immersion blender to blend 1/3 to 1/2 of the soup. Or skip the blending if you like a firmer soup texture. If you don’t have an immersion blender puree 2 cups of the soup in a regular blender or food processor; include some of the soup’s liquid to blend smoothly. Or, blend the whole thing up in a high-speed blender (in batches) to make a silky smooth lentil soup.
- Lentil soup keeps in the fridge for about 5 days and freezes well in an air-tight freezer-safe container up to 3 months.
Notes
Slow-Cooker Method:
I like this recipe best on the stovetop because the recipe steps bring out the most flavor from each ingredient. However, if you’re in a rush, toss all of the ingredients into a slow-cooker and set it on low for 5-6 hours or high for 3-4 hours. Blend part of the soup if desired before serving.
Note: Be very careful when blending hot mixtures and never fill the blender/food processor more than 1/4 the way full as hot liquids expand when blending.
If waiting longer than one hour to serve, leave the soup pot on the stove but turn the burner to the lowest setting. You can leave it on the stove for 2-4 hours. If it gets too thick, just add another 1-2 cups water. This recipe is really that flexible.
Keywords: Lentil Soup Recipe, Lentil Recipe
I don’t usually enjoy lentils. But this recipe is perhaps the best I’ve made. Very easy to follow, and my wife enjoys it a lot. A vegetarian, she’s very picky about what she eats.
She has pretty much made a Downs for it every other week.
Thank you,
★★★★★
When I’m feeling lazy but want something healthy, one of my go to dishes is to cook some lentils as the bag directs, but adding a bunch of salt, pepper, curry powder, garlic powder and onion powder. You can walk away and let it simmer until it’s done. Then I just throw it in a bowl, stir in some lemon juice (bottled stuff works fine) and add a big dollop of plain Greek yogurt to the top. Yum. Looks a little like dog food, but it tastes delicious, it’s cheap, uses barely anything except spices and lentils. Tons of protein and fiber. If I’m really hungry I also add a hardboiled egg.
Elizabeth, do you have nutritional information for this soup? Making it for dinner tonight and I track every thing in myfitnesspal! Thank you
Tried several receipes and yours was not only the best but also easy to follow thanks 😊
This was truly delicious! It’s hearty and flavorful, and the lentils are really satiating. I used regular brown lentils, did not soak them, nor did I blend them at the end. Thank you Elizabeth!
I like your lentil soup recipe except for the hand full of spinach at the end because spinach contains a lot of oxalic acid. Oxalic acid binds with minerals especially calcium and prevent minerals from being utilized properly. Southerners blanch their greens for 30 seconds, remove from the hot water then immerse them in ice or very cold water . Then squeeze them and chop them and cook however they want them. Having a southern grandma and a Japanese mother, they both agreed this was the proper way to cook greens. The Japanese say that you will get kidney stones if you don’t blanch your greens. Mom would toast and grind sesame seeds and mix them with a little sesame seed oil and soy sauce to pour over cold blanched spinach to eat as a side or put in sushi rolls. Only turnip and mustard greens do not need to be blanched. I recently read that many people were found to have high levels of oxalic acid. There was no other information as to why. I studied nutrition in college where I learned about oxalic acid. So I will add some blanched spinach to my lentil soup.
Made your easy lentil soup. Everyone raved about it, came out excellent. I added a pinch of thyme and rosemary, only difference. Thank you.
Hi Connie, glad to hear it! I love this recipe, too. Never fails 🙂 Thanks for stopping by to share your comment with our community. ~E
Was searching for a lentil soup recipe without tomatoes and decided to give this one a try last night. Was a hit with 3 out of 4 of us… not too bad since the little guy is pretty picky so he doesn’t count. My 8 year old went back for a third serving! Thank you 🙂
Just made this soup for dinner tonight. Delicious! Everyone loved it. Thanks so much!
Lisa, glad to hear it! This is one of my favorites, too. Thanks for stopping by to comment. ~E
I love the soup, so healthy and flavorful. please let me know the proper way to store it in the refrigerator. And how long can i keep it in the refrigerator? I’m the only one in the home who eats it.
FYI: i add sweet potatos on the second day. So yummy!!
Thanks
Thanks for the great start. Perfect first time! I added Kale leaves at the end and that was a success. Forgot to puree it but it was great nevertheless.
Do the lentils have to be boiled and rinsed first?
Hi Elizabeth, Do you have a vegetable stock (company) you can recommend or perhaps a recipe of your own you can share? Many thanks!
What is the, “onion half*, (see image below)”, all about, Elizabeth? It’s in step 4. Thank you for this yummy recipe. Very much like mine but now I have a recipe to give out.
Oh! I used to stick a whole half onion in for flavor and then discard it, but it’s just as easy to do without it. I just removed that 🙂
Looks yummy Elizabeth! Quick question, last time I cooked lentils (red, I believe) I soaked them and cooked them and they turned to mush even following cooking instructions. I thought may be the soaking caused this, I’m confused. Thoughts?
Great q! Red lentils are the “mushiest” of all lentils, use French green, or soak the red ones less.
Thanks! 🙂
I just bought some lentils at Trader Joe’s last week to make soup, but still needed a recipe – perfect!
Good, glad this helps!
I woke up to a cold, dreary, and wet day, wanting to make a soup, and found this gem in my inbox! Lucky me, and many thanks, Elizabeth!
You’re so welcome!
I woke up to a cold, dreary, and wet day, wanting to make a soup, and found this gem in my inbox! Lucky me, and many thanks, Elizabeth!