This Lemony Lentil Soup recipe is full of the best bright and zesty flavours, it’s naturally gluten-free and vegan, and it’s easy to make in the Instant Pot, Crock-Pot or on the stovetop.
Prep Time: 10 minutes
Cook Time: 25 minutes
Total Time: 35 minutes
Yield: 4 servings
This cozy red lentil soup is simmered with simple mix of veggies, spices and lots of lemon juice to brighten things up. But the restaurant version of the soup also featured two signature ingredients — corn and a pinch of saffron — which add the perfect hint of sweetness that make this soup perfectly-balanced and just lovely. I turn to this soup often because it’s easy to make and full of feel-good ingredients. But most of all, we just love it because it’s crazy-good and will forever remind us of home.
Let’s make some lemony lentil soup together!
Ingredients
1 tablespoon olive oil
1 medium white onion, peeled and diced
2 medium carrots, diced
5 cloves garlic, peeled and minced
6 cups vegetable stock (or chicken stock)
1 1/2 cups red lentils, rinsed and picked over
2/3 cup whole-kernel corn
2 teaspoons ground cumin
1 teaspoon curry powder
(optional) pinch each of saffron and cayenne
zest and juice of 1 small lemon
fine sea salt (salt of your choice) and freshly-cracked black pepper
Instructions
Stovetop Instructions:
Sauté the veggies. Heat oil in a large stockpot over medium-high heat. Add onion and carrots and sauté for 5 minutes, stirring occasionally, until the onions are soft and translucent. Add garlic and sauté for 1 more minute, stirring occasionally, until fragrant.
Simmer. Stir in the vegetable stock, lentils, corn, cumin, curry powder (plus saffron and cayenne, if using) until combined. Continue cooking until the soup reaches a simmer. Then cover and cook for 15 minutes, stirring occasionally, until the lentils are completely tender.
Blend (optional). Using either a hand blender or traditional blender, puree the soup until it reaches your desired consistency. (If using a traditional blender, please see notes below.)
Season. Stir in the lemon zest and juice until combined. Taste and season the soup with a generous pinch or two of fine sea salt and black pepper, as needed.
Serve. Serve warm, garnished with an extra fresh lemon slice if desired.

Instant Pot (Pressure Cooker) Instructions:
Sauté the veggies (optional). Press the “Sauté” button on your Instant Pot. Add oil and let it heat until shimmering. Add onion and carrots and sauté for 5 minutes, stirring occasionally, until the onions are soft and translucent. Add garlic and sauté for 1 more minute, stirring occasionally, until fragrant. Press “Cancel”.
Cook. Stir in the vegetable stock, lentils, corn, cumin, curry powder (plus saffron and cayenne, if using) until combined. Cover the pot and set vent to “Sealing”. Cook on high pressure for 8 minutes, followed by a quick release.
Blend. Using either a hand blender or traditional blender, puree the soup until it reaches your desired consistency. (If using a traditional blender, please see notes below.)
Season. Stir in the lemon zest and juice until combined. Taste and season the soup with a generous pinch or two of fine sea salt and black pepper, as needed.
Serve. Serve warm, garnished with an extra fresh lemon slice if desired.

Crock-Pot (Slow Cooker) Instructions:
Slow cook. Add onion, carrots, garlic, vegetable stock, lentils, corn, cumin, curry powder (plus saffron and cayenne, if using) to the bowl of a large slow cooker, and stir to combine. (No olive oil needed.) Cover and cook on high for 2-3 hours, or on low for 5-6 hours, until the lentils are completely tender.
Blend. Using either a hand blender or traditional blender, puree the soup until it reaches your desired consistency. (If using a traditional blender, please see notes below.)
Season. Stir in the lemon zest and juice until combined. Taste and season the soup with a generous pinch or two of fine sea salt and black pepper, as needed.
Serve. Serve warm, garnished with an extra fresh lemon slice if desired.

Notes
Traditional blender instructions: If using a traditional blender to purée the soup, please exercise caution (as always) as hot liquids expand when blended. I would recommend blending the soup in two batches, so as not to overflow your blender. I always slightly tent open the cap on the blender lid (or gently place a kitchen towel over the cap opening) so that excess hot air can escape while the hot soup is being blended. Once the soup is ready to go, return it to the stockpot and continue on with the recipe.
Sautéing the veggies: I really recommend sautéing the onions, carrots, garlic if you can before cooking them in the Instant Pot or slow cooker, in order to give them the best flavor. But if you’re in a rush, no worries, you can skip the sauté and just add them in together with all of the other ingredients. 🙂
Storage instructions: Any leftovers can be refrigerated in a food storage container for up to 3 days or frozen for up to 3 months.
Possible Variations:
Feel free to experiment and customize this soup however you might like! For example, you could…
Serve the soup chunky. Just skip the puréeing step and enjoy the soup as-is!
Make it spicier. Add extra cayenne if you would like to give the soup a bit more heat.
Add fresh herbs. Fresh mint and/or cilantro would also be delicious served with this soup.
Add yogurt. Feel free to also serve the soup garnished with plain yogurt for a creamy twist.
Add greens. You could also stir some fresh baby spinach or chopped kale into the soup just before serving if you’d like to add some greens.
Nutrition Facts (per serving)
| Nutrition Facts | |
|---|---|
| Servings Per Recipe 8 | |
| Calories 349 | |
| % Daily Value * | |
| Total Fat 10g | 13% |
| Saturated Fat 1g | 7% |
| Sodium 131mg | 6% |
| Total Carbohydrate 48g | 18% |
| Dietary Fiber 22g | 79% |
| Total Sugars 3g | |
| Protein 18g | 37% |
| Vitamin C 13mg | 15% |
| Calcium 98mg | 8% |
| Iron 6mg | 34% |
| Potassium 970mg | 21% |
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.
(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.