Low Syn Rhubarb and Custard Overnight Oats | Slimming World

These Low Syn Rhubarb and Custard Overnight Oats is our latest variation of the good old Slimming World favourite.

Regular readers of our recipes, will probably know that it took us 21 weeks of Slimming World before we tried overnight oats. They were just something we never really fancied.

Low Syn Rhubarb and Custard Overnight Oats | 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 👍

However, once we did try them we were left wondering why we’d not tried them before.

Low Syn Rhubarb and Custard Overnight Oats

If you’ve seen our other overnight oats recipes, you’ll know that they’re not layered in the typical overnight oats sense.

Low Syn Rhubarb and Custard Overnight Oats | Slimming World

We find that sometimes the oats can stay a bit dry, so we decided to layer it in a different way. On the bottom we have a layer of rhubarb (with a hint of ginger) which we mix in with the oats.

Low Syn Rhubarb and Custard Overnight Oats | Slimming World

Next we have a ‘custard’ layer. This is made with half a banana & custard Muller Light, some Quark, some Sukrin Gold and some vanilla mixed with 1/2 tsp of chia seeds.

As Chia seeds can be used as your HEB we have adjusted the amount of oats used to incorporate the chia seeds within your HEB option. However, if you prefer to syn the chia seeds you can. They are 5 syns for 25g, so a teaspoon will probably work out around 1 syn.

Low Syn Rhubarb and Custard Overnight Oats | Slimming World

We add Chia seeds in there to set the “custard” as they swell up when wet. Thus they set the “custard” layer & get a really nice set texture.

If you don’t have Chia seeds, you can leave them out and use 40g of oats.

Cooked Fruit and Slimming World

We all know that you should syn cooked fruit, but personally I don’t think that it’s worth the syns.

Having said that, cooked rhubarb is only 0.5 syns for 100g, and I think that’s quite reasonable. You can even have 500g of the stuff for your HEB (although not if you’re making this recipe, because your oats are your HEB.)

Want to try some more Overnight Oats?

We have a few more overnight oats recipes for you to try, with more to come:

What is Sukrin?

We use Sukrin Gold which is an all-natural granulated stevia sweetener alternative to sugar with zero calories. You can grab Sukrin Gold over onAmazon UK.

Half Syn Chocolate Christmas Pudding Cakes

Sukrin Gold 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 these Low Syn Rhubarb and Custard Overnight Oats.

2 Syn Rich Chocolate Cake With Salted Caramel Cream | 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.

And if you’re looking for a jar for your overnight oats we recommend these ones over on Amazon , or there are these clip ones.

Want to share your ideas with others?

We’ve had a lot of new members on our Facebook group, so 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?

Low Syn Rhubarb and Custard Overnight Oats | Slimming World

And you might even find some inspiration from our awesome members, and if you’ve joined already why not invite any friends that may find it helpful?

Order Our 6 Month Food Planner Now!


We are super excited to have released a 6 month food planner that works perfectly alongside our recipe book.

Our 6 month planner features 26 recipes – which are not available anywhere else. We have all the details on our Planner page.

Order Our Cookbook Now!

We’ve been squirrelling away doing squirelly things behind the scenes and can finally announce that our very first cookbook is available NOW!!

Pinch Of Nom Cookbook - preorder

The book features 100 recipes – around 80 of them BRAND NEW and not available anywhere else. Full colour photographs, hardback, a quality book that will stand up to frequent use!

Each recipe has been taste tested by twenty members of the Pinch of Nom community to ensure that they are amazing. Check out our cookbook page for more information!

Low Syn Rhubarb and Custard Overnight Oats

Votes: 12
Rating: 3.83
Rate this recipe!


Prep Time

Cooking Time

person 10 minutes 0 minutes



Slimming World 

273kcal 6

Smart Points (Flex/Freestyle)



Per person Per person Per person
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!
Please don't take a screenshot. These recipes are updated often!
if you get a blank screen when printing, please open the website in a browser & not the facebook app.

  1. Mix together the Oats, Yogurt, Rhubarb, Ginger and Granulated Sweetener.
  2. Place this mixture in the bottom of a Kilner jar (the jar should be able to hold up to 350ml)
  3. In a clean bowl, mix together the Muller Light, Quark, Vanilla Extract, Chia Seeds and Granulated Sweetener. Beat it well to remove any lumps
  4. Pour this mixture on top of the oat mixture, close the lid and refrigerate overnight

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.


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.

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. Thank you pinch of Nom for your brilliant recipes. I have pre ordered your book and cant wait for this to arrive.
    Just starting a more healthier diet from today…. rubharb over nights oats sounds like a good start for tomorrows breakfast
    I will let you all know of my progress.
    Happy new year to you and your team
    Doreen Ellison

    1. Thanks for getting in touch, Doreen! We’re getting really excited about the book release, not too long to wait now! 🙂

Leave a Reply

Your email address will not be published.

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