Instant Pot Spiced Red Lentil Sweet Potato Soup

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A creamy Indian-spiced soup that’s naturally creamy from red lentils and sweet potatoes, and made super simple thanks to the Instant Pot. With warming spices like garam masala and turmeric, this is a healthy yet hearty meal that’ll give you all the cozy vibes.
Prep Time: 20 mins
Cook Time: 15 mins
Total Time: 35 mins
4.9 from 19 votes

This Instant Pot Spiced Red Lentil Sweet Potato Soup is one of my favorite easy recipes, and it’s one that you all like so much too!

It’s a creamy and thick spiced soup that gets its natural creaminess from red lentils and sweet potatoes. No coconut milk needed to thicken it up because red lentils get mushy when cooked, plus the Instant Pot melts the sweet potatoes into the soup.

For a visual on how to make this recipe, check out the video on Youtube! It’s the first recipe in the video and starts around the 00:55 mark.

Why you’re going to like this recipe 

10 main ingredients. Okay, I’m not counting oil, salt and pepper. But yeah, 10 main ingredients, yay!

Weeknight-friendly. It requires just 5 minutes of hands-on cooking, so it’s definitely an easy option for those busy weeknights.

Hearty yet wholesome. This recipe is hearty and comforting, the kind of soup that’s more stew than soup and that’s super satisfying, thanks to its creamy texture, the protein-packed lentils, and the complex carbs from the sweet potatoes. This makes it a great meal for the whole family!

Perfectly spiced. If you’re tired of the same old meals, this is a recipe to try! It features Indian spices but it’s still very accessible and doable, even for novice cooks. The Indian spices pair perfectly with the red lentils (a classic combo), and are balanced nicely by the sweetness of the sweet potatoes.

This recipe is super easy to make so there’s not much to say, but keep in mind that this soup is quite thick and creamy, almost like a stew or dal. If you prefer a soupy texture, just add more vegetable broth or water.

You can add the extra broth/water before pressure cooking (in step 3), or after pressure cooking once you see the finished texture so you can add as much liquid as needed.

More delicious vegan soups

Hungry for even more delicious vegan soups, stews, and curries? Give these a try:

If you give this Instant Pot Spiced Red Lentil Sweet Potato Soup a try, be sure to tag me on Instagram with your recreations and please comment with your feedback below!

Instant Pot Spiced Red Lentil Sweet Potato Soup

4.9 from 19 votes
A creamy Indian-spiced soup that’s naturally creamy from red lentils and sweet potatoes, and made super simple thanks to the Instant Pot. With warming spices like garam masala and turmeric, this is a healthy yet hearty meal that’ll give you all the cozy vibes.
Prep Time: 20 mins
Cook Time: 15 mins
Total Time: 35 mins
Course: Dinner
Cuisine: Indian
Diet Vegan
Keyword: baked sweet potato, instant pot, red lentils
Serving size: 4

Ingredients

  • 1 tablespoon coconut oil (or oil of choice)
  • 1 medium onion, diced
  • 2 garlic cloves, minced
  • 1 1/2 tablespoons freshly grated or minced ginger
  • 1 serrano pepper, diced (optional, adds some heat)
  • 2 teaspoons garam masala
  • 1 teaspoon curry powder (optional)
  • 1 teaspoon ground cumin
  • 1/2 teaspoon ground turmeric
  • 2 medium sweet potatoes, peeled and cut into a large dice
  • 1 cup red lentils, rinsed until the water runs clear
  • 4 cups low-sodium vegetable broth*
  • 1 1/4 teaspoons sea salt + more to taste
  • Freshly cracked black pepper
  • 1-2 teaspoons maple syrup (optional)
  • For serving (optional): coconut yogurt, fresh cilantro, and flatbread or rice

Instructions

  • Select the Sauté setting on your Instant Pot and heat up the coconut oil. Once it’s shimmering, add the onion and cook for 3-4 minutes until slightly softened.
  • Add the garlic, ginger, serrano pepper (if using), garam masala, curry powder (if using), cumin, and turmeric and stir until aromatic, about 30 seconds.
  • Pour in the vegetable broth to deglaze the pot, using a wooden spoon or scraper to scrape up any browned bits on the bottom of the pot. Add the lentils, sweet potatoes, sea salt, and pepper. Stir to combine all of the ingredients. Select the Cancel setting.
  • Secure the lid of the Instant Pot and seal. Select the Pressure Cook (or Manual, depending on your model) setting and cook at high pressure for 10 minutes.
  • Once the 10 minutes is up, allow a natural pressure release for 10 minutes before switching the pressure release valve from Sealing to Venting. Open the Instant Pot and give the soup a stir. Taste for seasonings. You may want to add more salt, or to balance the acidity, you may want to add a teaspoon or two of maple syrup or sugar.
  • Once the soup has slightly cooled, top with coconut yogurt and fresh cilantro. If desired, serve with flatbread or rice.

Notes

* This soup is quite thick and creamy, almost like a stew, so if you prefer a soupy texture, just add more vegetable broth or water. You can do that before pressure cooking when you add the vegetable broth, or after pressure cooking once you see the texture so you can add as much liquid as needed .

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46 comments on Instant Pot Spiced Red Lentil Sweet Potato Soup

  1. Robin

    5 stars
    Followed your recipe exactly and I wouldn’t change a thing. Delicious. Meal prepped this for my lunches this week at work. Looking forward to going to work tomorrow :)

    1. Support @ Rainbow Plant Life

      Thanks for sharing, Robin! Glad we can help you with your weekly meal prep!

  2. Susan and Roddy

    5 stars
    Loved it!! I made this dish according to the recipe except for substituting a jalapeño for the serrano. I couldn’t believe how fast this was to prepare and how delicious it was. The leftovers were even better!

    1. Support @ Rainbow Plant Life

      Awesome. Thanks for your comment and for taking the time to review!

  3. Cheyla

    5 stars
    This stew is delish!! I have tried it with butternut squash even pumpkin if i don’t have sweet potatoes on hand. It is always delish. Love it!

    1. Support @ Rainbow Plant Life

      Thanks for sharing, Cheyla!

  4. Michaela

    3 stars
    the cooking time was too long, it ended up very, very mushy. The taste was good, but not so good like other dishes from you. I’ll try it again with the half of the cooking time, or the rest time and write again. and i take an other garam masala, maybe it was’t a tasty one. Also the colour was like mod, but this doesn’t matter😂

    1. Support @ Rainbow Plant Life

      Sorry to hear this recipe didn’t work out for you very well, Michaela. Thank you for the honest review nonetheless!

  5. Courtney

    5 stars
    This honestly might be one of the best dishes I’ve ever tasted! Added bonus, it’s super easy, too! Based on a few reviews, I added 2-3 big handfuls of spinach at the end and topped with yogurt and cilantro…delicious!

    I love your recipes so much…thank you!

    1. Support @ Rainbow Plant Life

      Thanks for sharing, Courtney! Glad you love the recipes!

  6. Sunie

    We made this last night exactly as the recipe says including the Serrano and curry powder. It turned out extremely well! Loved the flavors and stewie texture. This will be on our favorites list. Thanks so much!

    1. Support @ Rainbow Plant Life

      Hi Sunie, we’re thrilled to hear you enjoyed this recipe! Next time, would you mind leaving a rating alongside your review? Star ratings are big help to readers who are thinking of making the recipe. Thanks!

  7. Kallau

    You must have the 6 quart InstaPot! I have the 3 quart so this recipe didn’t fit, it made a big mess. I also made the Chana Masla but was smart enough to just use a big pot. I love all your recipes. Thanks for sharing them. I also enjoy your sense of humor. Love n’ stuff to you and yours.

    1. Support @ Rainbow Plant Life

      Hi Kallau, yes all of these recipes are formulated to fit in a 6qt instant pot. Hopefully you can try halving this recipe to fit your instant pot!

  8. Tina

    5 stars
    Amazing recipe, so fast and super delious! I don’t have a instant pot so i just used a normal pot haha. I’ve been a fan of your YouTube for a while, but that’s the first time I actually make something. And I’ll definitely make more!

    1. Support @ Rainbow Plant Life

      Glad you finally got to try one of the recipes, Tina! Thanks for the review!

      1. William Wodicka

        5 stars
        OMG this is my new favorite recipe. SO yummy and easy. I used chicken stock and real yogurt, though. I also simmered everything in a Dutch oven for about 25 min, as I don’t own an instant pot. At the end, I used a potato masher to break up the sweet potato. I had a particularly hot serrano pepper, but a little extra yogurt cut the heat perfectly. Bravo!!

  9. Vesna

    5 stars
    This recipe is amazing, although I changed it a bit (it’s almost like a disease, haha). I cooked it in a normal pot because I don’t have an instant pot.
    Because I love coconut milk, I used only 3 cups of vegetable broth and substituted the remaining cup with a can of coconut milk.
    I also added 1 tbsp of cashew butter – the tip you made in another recipe and I really loved it.
    In the end, I blended just a bit of soup (tried to catch potatoes) to make it creamier.

  10. Elle

    For some reason this ended up tasting quite bitter. Where did I go wrong?

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