
Sweet potato, lemongrass and coconut soup
I am so excited to finally be posting this recipe. You guys, I have been working on this baby for a while now and I LOVE the finished product.
This Thai influenced soup is sweet, aromatic, hearty and so flavourful. It also happens to be vegan and gluten-free. But, for those of you real creamy soup loving fans, I promise you won’t miss a thing.
So get your aprons on (does anyone actually wear aprons?), turn on some tunes and get cooking. It’s still the perfect time of year to make and eat a big ‘ol bowl of soup, especially one as good as this.
I garnished our soup with toasted cashews, fresh chopped cilantro, dried red chili, a fresh wedge of lime and a dollop of coconut cream and I absolutely love the layers it added to the soup. But there are so many options; you could try toasted peanuts, mint, basil, turmeric root, or fresh ginger.


Sweet Potato Lemongrass and Coconut Soup
This Thai influenced soup is sweet, aromatic, hearty and so flavourful and also happens to be vegan and gluten-free
Ingredients
- 2 tbsp coconut oil
- 2/3 cup yellow onion, finely diced
- 4 garlic cloves
- 11/2 tsp of freshly grated ginger
- 1 tsp turmeric
- 2 tsp chili powder
- 2 tsp coriander
- 1/4 tsp pepper
- 4 cups of roasted mashed sweet potato*
- 3 cups of vegetable broth
- 2 cups of coconut milk
- 3 tbsp of fresh squeezed lime juice
- 1/2 cup of thinly sliced lemongrass
- 1 tbsp + 1 tsp of Tamari (gluten-free soy sauce)*
- salt to taste
- *OPTIONAL GARNISH
- toasted peanuts or cashews
- cilantro, mint or thai basil
- dried red chili
- coconut cream or milk
- fresh lime wedge
Instructions
- Heat the oil in a large, heavy bottom pot (see below for some of my favourites).
- Add the onions and saute until translucent about 2-3 minutes. Add the garlic and the lemongrass and saute for another 2-3 minutes.
- Next add the turmeric, chili powder, coriander, and pepper and toss until the spices have dissolved into the oil. Let cook for a minute.
- Add the lime juice and Tamari and stir to mix. Then add the coconut milk and vegetable broth, bring mixture to a boil, then add the mashed sweet potato. Stir heavily until the sweet potato has broken up into the soup. Let soup begin to bubble, then reduce heat and simmer for half an hour.
- If you have an immersion blender, use that to blend the soup. If not pour the soup into a blender (you can two in a couple batches if need be) and blend until pureed. Add the soup back to the pot and let simmer for another 10-15 min.
- Serve garnished with your choice from the suggestions above.
Notes
*If you're not gluten-free, just use regular soy sauce. Â
*For the sweet potato, 2 average sweet potatoes will give you about 4 cups mashed. Cut the sweet potato in half and roast open side down on parchment lined baking sheet at 425F for about 45 to 50 min. Let cool, then scoop out the sweet potato.
Nutrition Information:
Yield: 6 Serving Size: 1Amount Per Serving: Calories: 425Total Fat: 31gSaturated Fat: 23gTrans Fat: 0gUnsaturated Fat: 5gCholesterol: 27mgSodium: 509mgCarbohydrates: 31gFiber: 3gSugar: 10gProtein: 11g
Nutritional information is provided as a courtesy and is an estimate only. This information comes from online calculators and not from My Sweet Mess. Although we do attempt to provide as accurate nutritional information as possible, these figures are only estimates.
This soup is so incredibly satisfying, you will be warm, full and your belly will be happy. The sweet, earthiness from the sweet potatoes, with the richness of the coconut milk and the fragrant lemongrass paired with the tanginess from the fresh lime and Tamari – is just spectacular. The flavours meld so well into one another; there’s something almost umami about it.
If you don’t have a heavy bottom pot that you love, here is one that I like.

If you love soup, here are a few more vegan recipes on the site that you might like:
Savoury roasted carrot tomato and red pepper soup
Creamy vegan leek and celery soup
And if you’re looking for ways to use your sweet potatoes, look no further:
Sweet potato and black bean enchiladas
Sweet potato and black bean hash
Sweet potato protein bowl with maple tahini
If you give this soup a try, I would LOVE to hear from you, comment on the blog or post a picture on Instagram and tag me @mysweetmess and hashtag #mysweetmessrecipes.
Till the next recipe,
Kristen xo
21 Comments
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The Honour System
Such bright colours and I loved the options for garnishes. A good soup is all about the garnishes and toppings.
kmysweetmess
I totally agree, and this one you can really have fun with!
sugarlovespices
I am sure we would love this soup! It has all the ingredients we, actually Loreto, uses to make our favorite Asian-inspired soups. Especially lemongrass, his secret obsession 😉 . It looks lovey with those toppings, too! P.s. I love aprons!!
kmysweetmess
Hahaha, I need to get used to wearing aprons, seriously. I am loving asian inspired soups…I have another one coming soon!
Food Meanderings
Yes, people do wear aprons. In fact, I wear one constantly in the kitchen (best invention ever to protect your clothes!) I even actually collect them ha ha … Seriously… I get them from sponsors (when I participate/win cooking contests) and when I go on trips, as gifts and I buy them for myself (just cause)… But your soup looks divine, creamy and yummy. I’ll definitely get an apron on for this one! 🙂
kmysweetmess
Hahaha!!! I’m terrible at wearing aprons – and some of my clothes show it because I’m also a messy cook 🤣
marilyn @family food around the clock
Wow, the ingredients are not what we use in a soup. so it going to be a different experience for us, I am sure we are going to love it! The photos are amazing! 🙂
kmysweetmess
Thanks so much Marilyn, I hope you enjoy it! I’d love to hear your feedback.
Chef Sous Chef
Loving this soup for spring or fall. Such gorgeous photos too!
kmysweetmess
Thank you so much!
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Leanne | Crumb Top Baking
Kristen, this soup looks so thick and creamy! And the flavours sound perfect. Love the styling too! Pinning for later!
kmysweetmess
Thanks so much Leanne – the lemongrass is such a nice addition.
Colleen
Yum, I love Thai flavours, so this soup sounds amazing! I’ve also been on a sweet potato kick lately so I’m pinning this to try!
kmysweetmess
Yay, I’m with you. I love Thai flavours.
Nat
My all favourite ingredients have been combined together to create a piece of culinary art. Thank you for this recipe! I am definitely trying it this week!
kmysweetmess
I’m so glad – aren’t they amazing together!
Kim Steele
This looks so smooth and creamy. I love sweet potatoes but have never had them in a soup. And then with the coconut? YUM. Pinning to try later!
kmysweetmess
You will love it, its sweet, earthy and fragrant.
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