Butternut Squash and Sweet Potato Soup in the Thermomix | Slimming World

This Butternut Squash and Sweet Potato Soup in the Thermomix has a ‘bit of a kick’ and is guaranteed to warm you up on cold winter days. Don’t worry, if you’re not a fan of chilli you can leave it out.

Butternut Squash and Sweet Potato Soup in the Thermomix

For the full list of ingredients and comprehensive instructions, please see the recipe card at the end of this post. Before you scroll, there’s important stuff in the blurb 👍

I also fancied trying something a bit different, so I used a pinch of Maldon smoked sea salt to give the soup a subtle smoky flavour. Sometimes things should be simple.

Whenever we need to replace oil in cooking we use Frylight. Perfect for everyday frying and cooking, it delivers exactly one calorie per spray, which makes it Syn free! The Sunflower or Olive Oil flavours are ideal for this Butternut Squash and Sweet Potato Soup in the Thermomix recipe.

Frylight Butternut Squash and Sweet Potato Soup in the Thermomix

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Butternut Squash and Sweet Potato Soup in the Thermomix

Votes: 5
Rating: 5
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Prep Time

Cooking Time

Portions 5 Minutes 20 Minutes



Slimming World 

207kcal 4

Smart Points (Flex/Freestyle)



Per Portions Per Portions Per Portions
Suitable For Freezing icon
Please Note - If portions are changed, then points/values will not change and will need to be worked out by yourself. We're working on this!
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  1. Add onion (and chilli if you're using fresh) to mixing bowl & chop 3 seconds, speed 5. Scrape down sides of bowl
  2. Spray with Frylight and add chilli flakes/powder & sauté on Veroma for 4 minutes, speed 1
  3. Add the Butternut Squash, Sweet Potato and stock, then add enough water to just cover the ingredients
  4. Cook for 20 minutes at 100 degrees, speed 1
  5. Once cooked make sure the veg is soft (if not give it a few more minutes) and purée (1 minute on speed 10)
  6. Check the seasoning and add a little salt and pepper if necessary
  7. Serve with a spoonful of cream swirled on top if you fancy it

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This recipe can be frozen, but please remember to do the following;

- Freeze it as soon as it is cold enough.
- Use a container or bag that is suitable for freezing.
- Defrost thoroughly before reheating (you can use the defrost setting on your microwave.)
- Make sure it is piping hot all the way through before serving.


Syn values given are correct at time of writing but may not always be accurate.

This website is UNOFFICIAL and in NO WAY part of or representative of Slimming World. 

We aren’t trained by Slimming World nor authorised to give Slimming World advice. Any advice given here should not replace the advice of your Slimming World consultant.

Ideally, you should check with Slimming world for the most up to date Syn values using official resources such as; the Syns calculator, Syns Online on LifelineOnline or by calling the Syns Hotline on (0906) 851 8518.

Although pinchofnom.com attempts to provide accurate nutritional information, these figures should be considered estimates. Varying factors such as product types or brands purchased, natural fluctuations in fresh produce, and the way ingredients are processed change the effective nutritional information in any given recipe. Under no circumstances will pinchofnom.com be responsible for any loss or damage resulting for your reliance on nutritional information.

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    1. Hi Lesley,
      Firstly, in a large pan, sweat off the onions and chilli in frylight over a low heat until soft.
      Next, add the chopped butternut squash and sweet potato and pour over the stock. Simmer gently until the vegetables are tender, then blitz using a blender. You can add a little more water/stock until you achieve the desired consistency. Season to taste with salt and pepper. 🙂

    1. Hi Lianne
      I often do soups in my Instant pot, which is very similar to a PKP. Once cooked, you may wish to tip it into a standard deep saucepan if blending with a stick blender, to avoid possible damage to the liner of your PKP. Thanks for getting in touch!

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Slimming World Recipes
A blog started by 2 chefs on their Slimming World journey, evolving into an epic adventure shared by many!