Syn Free Caramelised Onion Hummus | Slimming World

This Syn Free Caramelised Onion Hummus is great to serve as a dip with practically anything – it’s just so perfect when following the Slimming World Extra Easy plan.


Pitta, carrot batons, cucumber, kebabs, peppers, potato wedges, celery sticks, sweet potato fries, to have on a burger with salad……the list goes on and on!

Syn Free Caramelised Onion Hummus | Slimming World

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 👍

If you were to buy something like this ready made then you would be spending somewhere in the region of 1.5 syns per tablespoon.

Syn Free Caramelised Onion Hummus | Slimming World

That’s for the reduced fat ones, the regular ones are nearly double that.

You’ll notice that we use Butter Beans in this Syn Free Caramelised Onion Hummus recipe, but you can use chickpeas if you prefer.

In fact, you can use pretty much whatever tinned bean you like.

Synning the sweetener in this Syn Free Caramelised Onion Hummus

This Syn Free Caramelised Onion Hummus does need some sweetener to give the red onion that caramelised flavour.

As you will probably know Slimming World have brought out some new recommendations regarding the syn value of granulated sweeteners. Slimming World have confirmed what this change means.

Where there is 1 tbsp or more being used per serving they recommend members count 0.5 Syn per tbsp. If using smaller amounts, like a pinch or teaspoon, there’s no need to worry about Syns at all.

The recipe for this Syn Free Caramelised Onion Hummus uses 1 tablespoon of sweetener and is divided into 4 portions. So there’s no need to add any syns on for the sweetener itself as it works out at 1/4 of a tablespoon per serving.

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We use Sukrin 1 which is an all-natural granulated stevia sweetener alternative to sugar with zero calories.

You can grab Sukrin 1 over on Amazon UK.

Syn Free Caramelised Onion Hummus | Slimming World


Sukrin 1 doesn’t have that strange after taste that a lot of artificial sweeteners do!

It also shares the exact same sweetness and weight to sugar – which makes it really easy to substitute in recipes like this Syn Free Caramelised Onion Hummus.

Syn Free Caramelised Onion Hummus | Slimming World

If you are using a powdered sweetener, then please check how it compares to sugar. In some cases you’ll need to use less, as powdered sweeteners weigh less.

That being said you don’t have to use Sukrin – there are lots of other high quality granulated sweeteners available from the supermarket, such as Canderel Sugarly, and Natvia.

Syn Free Caramelised Onion Hummus | Slimming World

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 Avocado or Coconut Oil flavours are ideal for this Syn Free Caramelised Onion Hummus recipe.

Frylight Find Out More

Looking for some more dips?

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Our Facebook group is growing by the day. If you haven’t joined yet head over there and take a look. You wouldn’t want to miss out on the fun would you?

Syn Free Caramelised Onion Hummus | Slimming World

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Caramelised Onion Hummus

Votes: 84
Rating: 3.27
Rate this recipe!


Prep Time

Cooking Time

people 5 minutes 10 minutes



Slimming World 

103kcal Zero

Smart Points (Flex/Freestyle)



Per people Per people Per people
Gluten Free icon Dairy Free 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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if you get a blank screen when printing, please open the website in a browser & not the facebook app.

  1. Spray a frying pan with some low calorie cooking spray and cook the onions over a high heat
  2. When the onion starts to brown add the balsamic vinegar and Sukrin 1, then cook for 5 minutes or until the onion is soft
  3. Empty the contents into a food processor and then add all the other ingredients
  4. Pulse on high for 30 seconds. Scrape down the sides of the bowl then repeat until you get the consistency you prefer
  5. Add more salt and a little pepper if necessary and serve

If you make this recipe, snap a pic and hashtag it #pinchofnom — We love to see your creations on InstagramFacebook, & Twitter!


We use a fan assisted oven for all of our recipes. Need help converting the temperature for your oven? 

Click here for our oven temperature conversion guide.

If making this recipe Gluten Free please make sure to check the ingredients that you’re using

Especially things such as; 

- Stock cubes
- Soy sauce - substitute with Tamari.
- Worcestershire sauce - substitute with Henderson’s Relish.
- Etc.


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 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 be responsible for any loss or damage resulting for your reliance on nutritional information.

We kindly ask that you share this recipe via the share buttons and not via screenshots. 

As our recipes change often in accordance with syn value changes, we want to ensure that they're as accurate as possible at all times. 

If you use or re-create our recipes we kindly ask:

  • That you credit us by not only screenshot but linking to our original recipe post
  • You don't reproduce the recipe in full
  1. I used two onions in mine as I love caramelised onion.

    Can’t believe how great it tastes, even better than the high syn version I usually buy on those need comfort food days.

    Will definitely be making this again and going to use for taster session – Thank you for sharing this recipe.

  2. Hi Kate. Can anyone rectify the salt comment for me please as i want to make this but need to check how much salt is it 2tsp ? Thanks x

    1. Hi Charlotte
      All our recipes that are suitable for freezing now have a symbol on the recipe card.
      Unfortunately, this one isn’t suitable, but it will keep in the fridge for a couple of days. Hope that helps.

  3. OMG this is sooo good, thank you, I’ve been searching for a good SW friendly hummus for ages. I’ll definitely be trying out your other recipes ….. thank you x

  4. I made this today WITH the 2tsp of salt, it tasted great to me. My lemon was rather large so the lemon flavor came across a bit strong – I will make again with a smaller lemon. I also used two onions, more speed! BEST SYN FREE HUMMOUS RECIPE I have made so far. Thank you

  5. I tried this and read the comments after. Too much salt! But tastes lovely. Used chickpeas and may try butter beans but bot so keen on them!!

    1. Hi Liz
      You can use any other granulated sweetener. I tend to use Canderel Sugarly as it gram for gram you can use it the same way as Sukrin. (A powdered sweetener doesn’t really work in the same way.)

  6. This is delicious, so pleased I have found a nice hummous recipe. And with butter beans too! Who knew, they actually taste really nice and are easier to mash up than chick peas.

    How long do you think this would keep in the fridge?

    1. Hi Lindsey
      Delicious, isn’t it! I use butter beans in place of chick peas quite regularly now, and they’re great to thicken soups too! This should keep for 2-3 days in the fridge. Give it a quick mix before serving. 🙂

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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!