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Butternut Squash And Sweet Potato Soup

Butternut squash and sweet potato taste delicious together. And when they are cooked and blended into a soup, it feels like the ultimate comfort food on a cold and wintry day 🙂

butternut squash and sweet potato soup in a soup maker

I was pretty pleased to have enough sweet potato and butternut squash chunks left over to roast up in my air fryer – I did try to squeeze them all in my soup maker, but had to admit defeat and take some out!

butternut squash and sweet potato in a soup maker

How Do You Make Butter Squash And Sweet Potato Soup?

You will need;

  • 350g-400g chopped butternut squash
  • 350g to 400g chopped sweet potato
  • 1 chopped onion
  • 2 sliced cloves garlic
  • 850ml vegetable stock
  • optional extras (see further down for ideas)
  • seasoning (according to taste)

This soup comes out pretty thick, there is no need to really add in anything to thicken it up. Based on a 1.6L soup maker you will likely only be able to squeeze in 400g of each sweet potato and butternut squash before it becomes a bit too much. Remember if you put too much in and not enough stock they might not cook through enough, and potentially burn the base of your soup maker – not fun.

butternut squash sliced in half

  1. Prepare the vegetables. You can either roast the squash and potato first, or just add it in raw (see further on for roasting options).
  2. Optional: sauté the onions and garlic in a little butter or oil.
  3. Add everything to the soup maker. Ensure you are between the MIN and MAX lines.
  4. Make sure you give everything a good stir.
  5. Set off on smooth.
  6. I garnished mine with some garlic and herb croutons, as well as a little coriander.

butternut squash and sweet potato soup ingredients

Should I Roast The Butternut Squash And Sweet Potato?

Yes you can, if you have the time. Roasting them beforehand will give more flavour, but it isn’t essential.

You can roast the butternut squash and sweet potatoes in the oven two different ways;

  1. Peel and cube first, drizzle over a little oil and sprinkle some herbs on top. Cook in a preheated oven at 180C/Gas Mark 4 for about 20 to 25 minutes, or until soft.
  2. Cut the butternut squash in half, or quarters (lengthwise), and again drizzle with oil and sprinkle with herbs. You can just prick the sweet potato a few times with a fork. You will need to roast them for about twice the time as the chunks, so closer to 40 to 45 minutes. The advantage of this option is you can just scoop the flesh out afterwards rather than fussing about with peeling the skin off first.

Side Note: You can eat the skin of sweet potatoes, just make sure they are well scrubbed first. I’ve never tried putting the skin in the soup maker so I can’t tell you how this will work out – if anyone does, I’d love to hear how it turns out!

Optional Extras

You can use this sweet potato and butternut squash soup as a base, adding in optional extras to vary the taste – it does also taste great without the extras, it’s entirely up to you and your taste buds!

  • Spice it up with 1 to 2 tsps of chilli powder, or any spices of your choice (I used paprika).
  • Add some herbs such as dried rosemary or thyme.
  • Stir in a little coconut milk or yoghurt at the end.
  • Garnish with croutons for some added crunch.

sweet potato and butternut squash soup

I hope you enjoy this recipe – let me know in the comments if you make it! You can also find some more soup maker recipes here.

If you would like to join a friendly bunch of soup makers and get some more soup recipe inspiration please feel free to join us over on my private Facebook group.

sweet potato and butternut squash soup

Butternut Squash and Sweet Potato Soup

Yield: 4
Prep Time: 10 minutes
Cook Time: 21 minutes
Total Time: 31 minutes

The delicioulsy comforting combination of sweet potato and butternut squash is perfect for a cold winter's day. 


  • 1 onion, chopped
  • 2 cloves garlic, sliced/crushed
  • 350 g sweet potato, chopped
  • 350 g butternut squash, chopped
  • 850 ml vegetable stock
  • seasoning, according to taste


  1. Optional: saute onion and garlic in a little butter or oil.
  2. Add all the ingredients to your soup maker. 
  3. Stir well to make sure no ingredients are stuck to the bottom of the soup maker.
  4. Set off on smooth.


  1. Either add the sweet potato and butternut squash raw or roast it in an oven first.
  2. Feel free to change the taste by adding in your favourites herbs or spices.

Did you make this recipe?

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Saturday 29th of January 2022

To prevent the bottom of soup maker burning spray some cooking oils the bottom ofthe container (I use olive oil).

Elizabeth Boothump

Saturday 28th of December 2019

I am new to a soup maker and found my butternut squash and sweet potato recipe too thick. I chopped up the vegetables into chunks and added 1000ml of stock the maximum line on the soup maker. I put it onto smooth. Unfortunately it would not work, I had to chop up the vegetables chunks smaller and pour off some liquid before it would work. It then came out lumpy despite being on a smooth setting. Help please.

Liana Green

Monday 30th of December 2019

What soup maker do you have Elizabeth? When you say it would not work do you mean it wouldn't switch on? Also, are you using hot stock?

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