Slow Cooker Thai Sweet Potato Soup
This super easy and oh-so-cozy slow cooker thai sweet potato soup makes for the BEST easy dinner! Creamy, flavorful and healthy, it takes just 20 minutes of prep and your crockpot does all the rest. Dairy free, gluten free and vegan.
In the midst of all our holiday baking, let’s stop and chat about an easy and healthy dinner idea! Because it’s all about that balance, yes?
And oh is this slow cooker thai sweet potato soup perfect for the season.
It’s cozy, it’s warming, it’s nourishing.
And we haven’t even gotten to the best part yet. It only takes about 20 minutes to chop and dump everything in the crockpot.
And then wham bam dinner is done. Well, obviously the crockpot needs to do its thing and cook the soup, but you know what I mean. Barely any effort is required on our part.
Which, let’s be real, is absolutely essential this time of the year.
Because if you’re anything like me, you are trying to soak up every little bit of the magic that is the holiday season. And um, the craziness.
Which is exactly why we need to fuel up with this soup.
Packed with colorful veggies, creamy dreamy sweet potatoes, red lentils and oh-so-much flavor from a touch of coconut milk and red curry paste, it is hard to resist.
Tips & Tricks For This Thai Sweet Potato Soup
- Be absolutely sure to THINLY slice the onion for this soup. This ensures that it cooks all the way in the crockpot. If you slice it to the same thickness as all the other veggies, it will wind up sort of crisp tender (which isn’t necessarily a bad thing but you catch my drift).
- And along those lines, also make sure that you cut the sweet potato into the ½ inch cubes. This size allows them to cook fully and get nice and soft.
- In my slow cooker, this soup takes the full 8 hours on low for all the veggies to get perfectly tender. But all crockpots cook slightly different, so just keep that in mind.
- I typically add another ¼ teaspoon salt to the soup once finished cooking, along with some cayenne pepper to give it a bit of heat. But play around and adjust the seasonings to your liking.
Products I Love & Use To Make This Recipe (may contain affiliate links):
Thai Kitchen Red Curry Paste – This is the curry paste that I buy at my local stores. If you use this same brand (I can’t speak to any others!), the soup is pretty mild in terms of spiciness (which is why I like to add the cayenne pepper!).
Additional Cozy Soup Recipes You Might Enjoy:
- Slow Cooker Creamy Veggie & Wild Rice Soup
- Turmeric Quinoa Vegetable Soup
- Creamy Sweet Potato and Black Bean Soup
- Slow Cooker Vegetarian Tortilla Soup
- Dairy Free Tomato Soup
- Roasted Garlic Butternut Squash Soup
Did you make this recipe? Rate and review it down below! I’d love to hear from you.

Slow Cooker Thai Sweet Potato Soup
This super easy and oh-so-cozy slow cooker thai sweet potato soup makes for the BEST easy dinner! Creamy, flavorful and healthy, it takes just 20 minutes of prep and your crockpot does all the rest. Dairy free, gluten free and vegan.
Ingredients
For the soup:
- 1 medium onion, thinly sliced
- 3 cloves garlic, minced
- 1 (1 inch) piece ginger, grated
- 2 medium red bell peppers, sliced
- 2 medium carrots, peeled and sliced
- 1 medium-large sweet potato, cut into ½ inch cubes (2 cups)
- 1 cup uncooked red lentils, rinsed
- 4 cups low-sodium vegetable broth
- 3 tablespoons thai red curry paste
- 1 tablespoon coconut sugar (or brown sugar)
- ¾ teaspoon salt
- ½ teaspoon pepper
- 1 (14 ounce) can full-fat coconut milk
For serving (optional):
- chopped peanuts or cashews
- chopped cilantro
- lime wedges
- bread of choice, for dunking
Instructions
- Add the onion, garlic, ginger, peppers, carrots, sweet potato, lentils, broth, curry paste, coconut sugar, salt and pepper to a crockpot. Stir to combine.
- Cover and cook on low for about 7 to 8 hours, until the veggies are all tender.
- Stir in the coconut milk until combined. Taste and season with additional salt and pepper as needed (if you like a little heat, I’d also highly suggest adding in cayenne pepper to taste - so good).
- Serve as desired!
Nutrition Information:
Yield: 6 Serving Size: 1Amount Per Serving: Calories: 318Total Fat: 15gSaturated Fat: 13gTrans Fat: 0gUnsaturated Fat: 1gCholesterol: 0mgSodium: 568mgCarbohydrates: 39gFiber: 6gSugar: 8gProtein: 11g
Nutrition data shown is an estimate provided by an online calculator and is for informational purposes only. It should not be considered a substitute for a medical professional’s advice.
HI!
Do you puree the soup? It looks pureed in the picture.
I want to serve this as an appetizer soup? Would you suggest leaving out the lentils to make it a little less hardy?
Thanks
Hey Candice! Nope – it’s not pureed at all! I would leave in the lentils – they soak up some of the liquid while cooking and I’ve never tried altering the recipe without them 🙂
Help please!! I was rushing when prepping the ingredients the night before and accidentally mixed in the curry paste, coconut milk, sugar, salt and pepper together. Can I just put this in right at the start when I add the broth and everything else, or must the coconut milk really go in at the end?
Hey Ankit – it should be fine. I’ve never tested it myself that way but I don’t think it will ruin the soup 🙂
I’m making this tomorrow! For a house full of sick kiddos. I will be substituting chicken for lentils.
Hope you enjoy Elizabeth! And hope everyone feels better soon 🙂
Do you have any substitution recommendation for the lentils? I’m allergic to legumes and have such a hard time finding recipes that are dairy and legume free! This recipe sounds so delicious!
Hey Delilah! Do you eat meat? I think this would be delicious with either chicken or even a ground meat included. If you do the chicken – I think you should be able to put uncooked chicken breasts (I’d probably do two) in the slow cooker and cook for the 8 hours (then shred). If you did the ground meat – I’d brown it first before adding to the crockpot. And thank you!
this is my “Election Day Soup”I am an election judge here in Minneapolis. My polling station has a kitchenette that the election staff may use. 6 a.m. to 9:15 p.m. is a realllllly long day. So, we have a day-long potluck. I brought this. It was gone by noon. Election Day in November is dark & cold in Minnesota. Perfect for soup.It’s filing enough that I serve it during Lent as a “just soup & bread” meal.
Oh I love this! So happy to hear you enjoy it Elizabeth! Thanks for taking the time to let me know.
I stumbled across this recipe searching for ways to use up farm share sweet potatoes, and I’ve made it over and over again. This soup makes me irrationally happy, it’s delicious!!!
This made me smile! So happy to hear you enjoy it Emily!!
Could I cook on high for 4 hours instead?
I haven’t tested it myself that way, but you could certainly give it a try!
I could in high for 4 hrs and it worked great.
Hi,
Making it right now. Do I cook it with out the coconut milk and then put it in last? Or do I put coconut milk in at the beginning. Thank you…
Hey Beth! Cook it without the coconut milk and then stir it in right at the end before serving! Hope you enjoy!
I tried this today. Everyone liked it. I chose to blend about 1/3—1/2 of the soup and return with the rest. I just like that texture. Served over cooked rice noodles.
Used a yam instead of a sweet potato. The sweetness of the yam with the combination of the 3 Tbsp of Thai Curry Paste was really good. Definitely will be making this again!
So glad that you all enjoyed it!! Thanks so much for letting me know. And I like the sound of those modifications!
WOW!!!!!!!!!! That was amazing!!!!!!! I really spiced it up with the cayenne pepper! We were sniffling all through dinner – but it was fabulous!
Cooked up some shrimp with ginger and lime juice to add on top, cilantro and crushed peanuts!
Will definitely be making this again!
YUM!!!!!
Oh I’m so happy to hear it! haha And I usually do the same with the cayenne! Thanks for letting me know Maria!
Hi Ashley…love this soup! I had hot curry paste on hand so I used just 1 tablespoon.
Can this be frozen?
Hey Ruth! So happy to hear it!! I haven’t frozen it myself yet but I think it should do okay in the freezer! Let me know if you do!
I freeze this all the time. Actually, I’m making more tomorrow because I just ate the last bowl. It’s perfect to take to work for a warming and filling lunch.
Hey Roxanne! Awesome – thanks so much for letting me know! We always eat it too quickly and I never have a chance to freeze lol
I want to add shrimp to this. Should I just cook them on the side and then add on top – or can I add it to the slow cooker? Thanks!
Hey Maria! I would just cook on the side and then add on top! I think the shrimp would get overcooked if they were in the slow cooker the whole time (and since I haven’t tested it, I couldn’t really say when to add them in the crockpot!).
This was so good! My family loved it!
Yay!! I’m so glad!! 🙂
Definitely the most wonderful time of the year with all the cookies and soup!! This looks so bright and beautiful – I am loving sweet potato anything these days. Definitely pinning for later 🙂
I have to admit that sometimes I let the savory end go a little slack during early December when I’m busy thinking about cookies! Love using the slow cooker and you know I love anything with sweet potatoes. And soup…what more can a girl ask for!
haha cookies are totally important too! Thanks Monica!!
You can’t beat a warming bowl of soup at this time of the year and the fact it’s made in a slow cooker makes it all the better!
It’s calling for snow on Monday so this slow cooker Thai Sweet Potato Soup sounds perfect!
I LOVE the Thai flavors! This Thai sweet potato soup looks divine, Ashely. Love how easy, comfy and cozy this is. Full-fat coconut milk and sweet potato sound like a match made in heaven. YUM!
This looks SO comforting, and I love that there’s a hint of spice, yet another perfect to keep you warm! (It’s also gorgeous!)
Thanks Nicole!! Happy weekend!
Love these flavors! This soup is just what we need for this crazy busy holiday season!
This looks so incredible, Ashley! I love that it’s made in the slow cooker, and all the Thai flavors look so on point. Loving the sweet potatoes in there, especially. Swooning over here!
Thai food is one of my favourite cuisines so this recipe is right up my street 😀 Looks super delicious and comforting 🙂
Same here! Thanks Nadia!
I love sweet potato soup, and this Thai twist sounds delicious! Even better, I can make it in my slow cooker, because I’m all about using that for soup these days. I’d take this over Christmas treats any day!
I’ve been making a ridiculous amount of soup in my crockpot lately!! haha Thanks Marcie!
My my!! This is the look and sound of comfort on a cold winter day!
Easy and cozy slow cooker soups are just what we need during the holiday madness! A big bowl of this sounds SO good right now! LOVE the Thai flavors!
Anything Thai flavoured has my name written ALL over it. Love this gorgeous soup Ashley! Looks delicious and I can only imagine how flavourful it is!
I’m loving the sound of this soup Ashley! And the fact you can just throw it all in the slow cooker makes it even better. We could all use a few more of these easy recipes for the Holidays. Pinning for later 🙂
Yes! Easy recipes are essential right now! Thanks Stephanie!
With full fat coconut milk and sweet potato, this soup must be very delicious and comforting!
Haha, Ashley, I am all too familiar with the craziness of this season! So yay for quick to make crock pot soups! And this one looks especially hearty and thick! That red curry paste must add boatloads of flavor and te red lentils add a big ol protein boost – my daughter decided to become a vegetarian not too long ago and she would so love this soup!
Lol! Life is all about balance, especially this time of year. Mostly I’m trying to balance out all my cookie eating with healthier meals.. and popcorn, because popcorn counts as a healthy meal. Ha. And a big heck yes to mostly doing all the other holiday things other than working… I couldn’t find a balance there if I tried. But let’s be honest, I’m not going to try. 😉 Anyways, give me ALL the easy, cozy meals! Love this soup, Ashley! Thai flavors plus the ease of the slow cooker? Soup-erb! I could totally get down with a vat of this! Pinned! Cheers, friend!
hahaha yesss!!
This sounds absolutely incredible, love the flavors!
I love everything about this soup! From the slow cooker, to the Thai, and that beautiful color!
Ooo and in the slow cooker? I’m sold! Give me a bowl!
Yes! It’s definitely all about balance, and it’s something that I need to embrace more this holiday season. While I do love sweets, there’s something about a slow cooker soup that’s all warm and cozy and just about the best thing ever. I’m loving the flavors of this thai soup, Ashley! And you can’t beat the prep time. Sounds perfect to make on a cold day! YUM!
Yes! You just can’t beat the ease of a slow cooker meal! Thanks Gayle!