Sweet Potato Soup
This creamy sweet potato soup with ginger is a sweet-and-spicy, velvety bowl made from just a handful of veggies, warming spices, and a knob of fresh ginger. There is no coconut milk and no cream here, yet it turns out rich and smooth thanks to the natural starch in sweet potatoes and regular potato. It comes together in one pot in about half an hour, so it is the kind of soup you can make on a weeknight when you want something cozy without much effort.
How this soup came to be
I wanted to make a cream of sweet potato soup for a very long time, ever since I saw Dana’s Minimalist Baker blog, where I found an awesome sweet potato soup recipe with coconut and curry flavor. I was inspired by it and decided to give it a try myself. Unfortunately, I didn’t have any coconut milk, so I made a different, more simple version. To be honest, I’m not really used to cooking with sweet potatoes. I first gave them a try when I used them in my Potato and Cheese Tart recipe and I absolutely loved them. They taste pretty much like pumpkin and are great when you want to add a little color and sweetness to a recipe.
The ingredients that matter
The list is short on purpose, so each item earns its place. Here is what to look for and why it works:
- Sweet potatoes are the backbone. Pick firm ones with smooth, unbruised skin. They bring the sweetness and most of the body, so the soup stays creamy without any dairy or coconut milk.
- A regular potato balances the sweetness and adds extra starch, which is what gives the blended soup that thick, spoon-coating texture.
- Carrots and onion round out the base. The carrots reinforce the natural sweetness and color, while the onion adds savory depth once it softens.
- Fresh ginger, grated, is the spark. It cuts through the sweetness and gives the soup its gentle heat. Grate it rather than chopping so it melts into the blend.
- Ground cumin and crushed chili bring warmth and a little kick. Add them toward the end so the flavors stay bright.
- Olive oil for a finishing drizzle, plus salt and pepper to taste, and fresh chopped herbs on top if you have them.
Getting the creamy texture right
The one rule that makes or breaks this soup is the water. Add only enough to barely cover the veggies in the pot, and resist the urge to pour in more. Sweet potatoes and potato release plenty of starch as they soften, and that starch is exactly what thickens the soup when you blend it. If you drown the veggies from the start, you end up with something watery that no amount of blending will fix.
So boil the vegetables until they are properly tender, around 20 to 25 minutes, then blend with a vertical (immersion) blender right in the pot. Only once it is smooth should you add a splash more water, a little at a time, until you reach the consistency you like. Adding spices and the grated ginger just before blending keeps their flavor lively instead of cooking it away. A fork should slide into the sweet potato with no resistance before you blend, that is your doneness cue.
What to serve it with
I served mine with Schar gluten-free crackers (Fette Croccanti) for some extra texture and crunchiness, and that contrast of crisp against the silky soup is lovely. A drizzle of olive oil and a scatter of fresh herbs on top finish it off. If you want to build it into a bigger meal, it pairs well with other warming bowls and sides. Try it alongside my gluten-free lentil and sweet potato burgers if you are leaning into the sweet potato theme, or serve it as a starter before a heartier dish. If you love this style of smooth, gingery soup, you will probably also enjoy my creamy carrot ginger soup.
Storing and making it ahead
This soup keeps beautifully, which makes it a smart batch-cook option. Let it cool, then store it in an airtight container in the fridge for up to 4 days. It actually tastes even better the next day, once the ginger and spices have had time to settle in. To reheat, warm it gently on the stove over low to medium heat, stirring now and then, and loosen it with a little water if it has thickened in the fridge. It also freezes well for a couple of months, so I like to keep a portion in the freezer for busy days. If you are stocking up on cozy blended soups, my cream of potato and carrot soup and creamy peas soup store just as nicely and make a good rotation alongside this one.
If you make this creamy sweet potato and ginger soup, I would love to know how it turned out for you. Leave a star rating and drop a comment below, especially if you played with the chili and ginger levels or found the perfect cracker to serve alongside it.
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Sweet Potato Soup
Ingredients
- 2 sweet potatoes cut in small cubes
- 1 onion cut in four
- 3 carrots cut in chunks
- 1 potato cut in small cubes
- 1 thumb-size piece of ginger grated
- ½ teaspoon ground cumin
- ¼ teaspoon chili pepper crushed
- salt and ground pepper to taste
- 1 tbsp olive oil
- water just enough to cover the veggies
- fresh chopped herbs optional
- Schar gluten-free crackers Fette Croccanti optional
Instructions
- Put all veggies in a large pot.
- Add water just enough to cover them. Be careful not to add too much water. You’ll be able to add more later and create the perfect consistency and texture for your creamy soup.
- Bring to a boil and add salt and pepper.
- Let them boil until tender – around 20-25 minutes.
- Add spices and grated ginger.
- Using a vertical blender, start blending the veggies.
- Add more water if needed, to create the perfect creamy texture.
- Serve with gluten-free crackers, drizzle with olive oil and add some fresh chopped herbs on top.
Frequently Asked Questions
Yes. Every ingredient is plant-based: sweet potatoes, potato, carrots, onion, fresh ginger, cumin, chili, olive oil, salt, pepper, and water. There is no coconut milk, dairy, or cream, so it is naturally vegan and dairy-free.
The creaminess comes entirely from the starch in the sweet potatoes and the regular potato. As they boil and soften, they release starch, and blending them with an immersion blender turns that into a thick, smooth texture. The trick is to start with just enough water to cover the veggies so the soup is not diluted.
The soup itself contains no gluten. To keep the whole bowl gluten-free, serve it with gluten-free crackers, such as the Schar Fette Croccanti I used, or any certified gluten-free bread or crackers you like.
The recipe calls for one thumb-size piece of fresh ginger, grated, which gives a gentle warmth rather than an overpowering heat. You can scale it up or down to taste, and the same goes for the crushed chili pepper. Add the spices and ginger near the end so their flavor stays bright.
Stored in an airtight container in the fridge, it keeps for up to 4 days and often tastes even better the next day. It also freezes well for a couple of months. Reheat gently on the stove and loosen with a little water if it has thickened.
Adding too much water early on dilutes the starch the vegetables release and leaves you with a thin, watery soup that is hard to thicken back up. Cover the veggies with just enough water to boil them, blend, then add a little more water afterward to reach your preferred consistency.
I was never a fan of sweet potato but this recipe is just too good! Definitely recommended <3
Glad you liked it! 😀
Two of my favorites: sweet potato and ginger! This looks great!
Quick question though. Do you think I could freeze this and then thaw it later? Thanks!
Thanks Lizzie! 😀 Sure you can! Such a great idea 🙂