slimming world weetabix brownie 


For those of you that have been reading this blog for a while, you’ll know that I’m a big/curvy girl and that I’ve always been OK with that. In fact, I’ve celebrated it. I love food, especially sweet stuff, and can think of nothing better than going out to eat with the people I love. Which probably explains a lot!


However, over Christmas I had time to think about things. Life stuff. And I came to a decision. I’m not happy. I knew I hadn’t been for a while, but couldn’t really put my finger on exactly what the issue was. I’d felt like I’d become a bit of a hermit, only going out to the shops or bank or to check in on Dad and take him to the Dr. It wasn’t really much of a life – work-shops-Dad-Dr-work-shops-Dad-Dr. You get the gist.


And then I had a bit of a lightbulb moment. Even though I’m not a huge eater, I don’t binge, nor do I pick throughout the day, I do eat the wrong things and at the wrong times, and I was just fed up of feeling so damn lethargic all the time. My knees were crunchier than ever, because we’ve moved house I no longer need to cycle anywhere and I just felt … bleurgh.


So over Christmas I decided it was time to get serious about losing weight.


Not because I’m desperate to fit into a size 10 dress, or because I want to conform. But because I’m just fed up of feeling unfit, overweight and frumpy.


I briefly joined Slimming World at the end of last summer but was quickly reminded of why I hate going to clubs – the rules, the miserable women that work there (at least they were rude and miserable at my club), having to wait around for ages just to get weighed and then being made to feel like you have to stay for the talk afterwards when all you really want is to go home and put your pyjamas on.


I lasted 3 weeks. Being ‘fined’ because I couldn’t make one week because I had a meeting got right up my nose so I just didn’t go back.


I liked the Slimming World food plan though and could see how it could work so decided I’d try and do it on my own. I spent a couple of days over Christmas doing research some on recipes, SW Facebook support groups, shopping lists etc, so I was totally prepared from Day 1.


I debated whether to ‘go public’ about being on a ‘diet’ – I always feel that I’m setting myself up for failure when I do that – but I’m really appreciating the support in one of the SW Facebook groups I’m in in particular and so I thought that if one person could benefit from reading posts like this, it’s worth it.


Dexter is nearly 12 and is benefitting from the SW recipes I’m cooking and although I haven’t put him on a ‘diet’ per se, I see these recipes as a healthy way to cook for the whole family.


We’ve now started our second week and here are the results of week one:


I’ve lost one stone and Dexter has lost half a stone.


I understand a lot of this is water but a loss is a loss and I’m thrilled! I’m taking into account that I’m not weighing in on professional scales in a class, but I’m weighing myself at the same time of day, on the same day, in the same place every week so I’m trying to get as accurate results as I can.


So I’m hoping to share my weekly results with you, without boring the bejesus out of you.


I’m trialing out some of the recipes I’ve found online and wanted to start sharing them with you here.


First up is a Weetabix Chocolate Brownie.


It was Sunday, late morning, and I was craving the ultimate – cake AND chocolate. To be honest, after a week on the SW plan, I haven’t really wanted for anything. You can use your syns to curb any cravings you have, but I’m not sure they’d stretch to a fat slice of chocolate cream cake. So I found a recipe that used Weetabix in it (which is within your SW allowance) to make a variation on a muffin recipe and, for a first attempt, it came out quite nice.



  • Weetabix x 4 (Hex B option x  2)
  • Toffee Mullerlight Yogurt x 1
  • 2 teaspoons vanilla extract
  • 4 eggs
  • 2 level tablespoons cocoa powder
  • 1/2 teaspoon baking powder
  • 4 tablespoons sweetener
  • 2 teaspoons Nutella/chocolate spread (to decorate)
  • 1 banana (to decorate)



I will try out different variations on this recipe to see how I can make it even better – perhaps by using a different flavoured yogurt (cappuccino/cherry/banana & custard maybe?), adding quark as a topping, add some mixed spice, ginger or cinnamon or use different fruit as toppings etc. So you can see how many different variations you could make.



Pre-heat oven to 180 degrees Celsius, gas mark 4.


Put Weetabix in a food processor and blitz to a fine powder. Add all other ingredients and mix until smooth. I used 3 eggs this time but will try 4 next time to see if it gives the brownie mixture more rise and I’m also wondering whether it would benefit from a small addition of baking powder. I might add that next time to see what happens!


You could put this mixture into cupcake cases but I put it all in a smallish square baking tray lined with greaseproof paper and levelled it off. It was quite a thin layer and didn’t rise that much.






Cook for 15-20 minutes, depending on how thick your mixture is, and test using a knife – if it comes out clean, it’s ready. Cool on a wire rack and decorate to taste.


I cut the brownie into 4 squares and added ½ teaspoon of chocolate to each quarter, topping off with a couple of slices of banana.


The mixture isn’t aerated and spongey and it’s quite dense, but it did do the trick of curbing my cake and chocolate craving. I had 2 quarters with a cup of coffee and estimate that it came out at 1-1.5 syns per quarter (syns coming from cocoa powder and chocolate spread on top.) I’ve used my Hex B option so haven’t synned the Weetabix but if you’ve already had yours, you’ll need to work out the syns for Weetabix – I make it 3.25 syns per biscuit.


Edit:  I didn’t syn the baking powder, because it’s fairly minimal, but if you’re being uber strict, don’t forget to syn that too.


It’s a work in progress and I will continue to refine this recipe but it’s a good basic recipe to work from.


Edit:  I made the brownie again today and added an extra egg and 1/2 teaspoon baking powder which has made for a much spongier cake. I’ve amended the recipe above to reflect this.


slimming world weetabix chocolate brownies


Edit:  I can’t stop making this! Today I added some raspberries and they were delicious! However, I think if you’re being uber strict, because the raspberries are cooked, I think you’d have to syn them.


weetabix chocolate brownies


I hope you enjoy it!

kate sutton


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Published by Kate Sutton

Writer, Mother, Dater.

Join the Conversation


  1. Sounds lovely – could stick some lush raspberries on top – top with quark and options white chocolate (mixed to smooth) ….. Mmmm drooling.
    If I lose at weigh in tomorrow- 2 of these and. Milky coffee have got my name on x

  2. Well done on a great first week, superb loss.

    Recipe sounds yummy, don’t forget to mention weetabix are from your healthy extra’s though or extra syns x

  3. That’s an amazing result in one week. Well done, and good luck with the rest. I’m also on a diet, but total meal replacement before mixing it back with healthy food and keeping an eye on portion sizes.

    This recipe looks interesting but as you see lots of variations.

  4. What an amazing first week loss, and I will be trying this Brownie this week along with the cloud cake yum yum xxxx

  5. My sister found you and I’m glad she did .
    Love your recipes and antidotes look forward to reading more. Keep up the good work

  6. I made this yesterday was great. Hubby really liked it too considering hes had a cake craving all week. Making another one today.

  7. Thank you for your trials. I shall have a go at this. My hubby and I are following SW plan, but not going to a class as like you don’t need telling I am over weight. we put our money weekly in a jam jar and its building up so we can treat ourselves . Keep going and keep us posted xx

  8. I go to a SW club but it’s friendly and lovely – I’m going the scenic route and needed something to give me fresh motivation – it does get samey in group when you go every week for as long as I have! I like your blog it’s great – gonna try this tomorrow 🙂 thanks very much!

    1. I think I was just really unlucky with my SW class – it was really grim (although she doesn’t work there anymore!) so I’m glad you’ve found one that works for you 🙂

  9. Hi there
    I’ve just made your choc weetabix cake!! (Still cooling). It just doesn’t look as dark as yours !!! Yours looks so chocolatey … Is it deffo just 2 teaspoons of cocoa?? Not tablespoons??

    Looking forward to having it later xx

    1. Oh bum, I think you’re right – 2 teaspoons doesn’t sound like a lot at all! So sorry Laura – I don’t think you’ll be disappointed with what you’ve made, but yeah, maybe try it with 2 tablespoons next time lol! I’ve changed it on the blog now. I haven’t made it in AGES so really need to test this out again – it was the first thing I made I think! Sorry again x

      1. Haa ha that is funny!!! It does look lovely though and I think I can have some extra Nutella on top now, lol Anyway thanks for the recipe, so quick and easy … And loving your blog too! I have been on SW for 13 weeks now and have lost 1 stone 9lbs so far … It’s people like you, and your recipes that are keeping me going … Ver inspirational xx

  10. I made this recipe yesterday and absolutely love it, thank you. But you need to rethink the Syns you’re stating. If using the weetabix as a healthy B makes it 1-1.5 Syns per quarter, adding the Syns from the weetabix should make it 4-4.5 Syns because Weetabix are 3 Syns each.

    1. Hi Jim – thanks for the comment. But is that not exactly what I said in the post? I’m confused. I state the biscuit is 3.25 syns (so I’ve over estimated by 1/4 of a syn), and then tell people they’d need to work out the syns based on whether they’ve used their HeB, what brand of cocoa they use etc.

      1. Apologies, I’ve re-read the article and realise that the first time I read it I mistakenly thought you meant it was 3.25 Syns per quarter of cake, rather than per Weetabix. My mistake.

        Love this recipe though, just made my second one!

        1. No worries Jim – I’m just really quite careful about what I say about syns, do my research and try and give people the best information I can. And then tell them to double check the syns themselves 🙂

  11. I made this for the first time today and it was absolutely amazing, I was pleasantly surprised how much it actually made and how filling it was.
    I had mines with a portion of fresh raspberries on the side mmmm so yummy
    Thank you and looking forward to trying some more of your delicious recipes 🙂

  12. Just made this recipe and absolutely loved it, I forgot to include the sweetener and it was still lovely and chocolatey.. I will definitely be making this again.

  13. This looks fab I can’t wait to do this ,, & amazing result How did U lost a stone in a week Iv to be doin something wrong ! Hahaha Well done X

  14. I’ve just finished 12 weeks at SW and like you hated the bit after the weigh in so I used to sneak out and hope no one noticed I’m hoping your blog will keep me motivated to keep going as want to loose a few more pounds and more importantly maintain my loss

    1. Hi Marjorie, thanks for stopping by. I think support is so important during this process and if you can’t get it in class (I didn’t) then you can get it here! Do come and joint my FB page as most people over there are going through exactly the same as us! Oh, and good luck.

  15. hi Kate I’m really looking forward to making these could I change the toffee muller light to the cherry one as I’m not really keen on the toffee one

  16. This looks great!! Going to be making tonight… I think baking powder is a syn just noticed u never mentioned that in your syn. Syn estimate… also a way of lifting it may be to separate the eggs and whisk the whites?? I dunno I’m just talking that from the half syn cake recipe which is half a syn cause there is a teaspoon of baking powder in it…

  17. Kate- I made these with your amendments and put into large muffin cases. For extra treat I topped with sweetened quark
    They are just lovely and not too dissimilar to a chocolate muffin! I found they tasted better a few days old too! Ace recipe x

  18. Hi Kate
    I think the sweetener needs to be synned too now – making that an extra 1/2 per portion (19.5 syns for the whole cake) without the Nutella! Going to try it out anyway and cut it into smaller portions!

      1. Hi Kate thank you for ur delicious recipes I’m struggling on slimming world as I love my sweet treats I just made the chocolate cake recipe today with orange zest and the hi lights chocolate and it actually made two cakes ur right the one did go down a lot is it supposed too be like a mousse cake it is lovely and choclatety

  19. Hi I know this post is a bit old but I’ve decided to try these currently got it in the oven. I was wondering could this be made with weetabix fruit and nut minis if so what would the sun value be?

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