Slimming World Weetabix Cake

So this recipe has been on my to do list for quite a while now and I’ve finally got round to making it! I wish I’d done it sooner because it tastes so nice! This slimming world Weetabix cake sounds weird and like it wouldn’t taste that nice but trust me, it’s a winner.

Personally, I always thought that Weetabix was a breakfast cereal and would never go well in cakes. However, while I’ve been on my slimming world journey I’ve learned so much. Who would have thought that a diet coke chocolate cake would be a thing? Weetabix is the same and it tastes just as good!

I will say that the mixture looks like a bit of a mess and not very appealing, trust me though it tastes a lot better than it looks and you don’t have to add sugar on it like you would your breakfast, or is that just me? This healthy slimming world Weetabix cake recipe is the perfect package.

Super Easy Slimming World Weetabix Cake Recipe
Super Easy Slimming World Weetabix Cake Recipes

Slimming World Weetabix Cake Recipe Tips

Whenever I make a cake I make sure that I can actually get it out of the tin and this applies to the Weetabix cake as well. I use these amazing tin loaf cake liners to make sure I can get the cake out when it’s cooked. I don’t know about anyone else but I get so annoyed with the cake sticking to the tin and it doesn’t matter what I use, it always sticks!

You might think the Weetabix cake mixture is too wet, but don’t worry because it’s fine. I thought the mixture was too wet but it turned out just fine, obviously if it looks like water however it might be a little too wet.

If you want a little more texture in your Weetabix cake I would suggest adding a few more sultanas but make sure you know how much they would cost in syns!

Slimming World Weetabix Cake Recipe Tips

How Many Syns In Slimming World Weetabix Cake?

If you’re looking for a syn free Weetabix cake I’m afraid you’ve come to the wrong place. This Weetabix cake has 3.5 syns in it per serving. So that means you will have to factor in that it has syns, I know not the best and no one likes to use their syns but it is worth it.

I mean if you’re looking for something mega naughty to use your syns on I would have to suggest these amazing slimming world lemon muffins which are scrumptious and worth every syn! If you’re looking for healthy cakes though, this one is the one for you.

I love making slimming world cakes and I’m always on the lookout for new recipes that I can try and I love adapting recipes already out there to make them slimming world friendly or in my opinion, better. It’s always down to personal taste though and you’ve got to keep that in mind.

If you’re on the lookout for healthy slimming world desserts you’ll be sure to find them on Matts Cafe, I love them and the slimming world journey shouldn’t be about not getting to eat yummy food!

Budget Friendly Cakes

I’m also proud to say that I’ve now started looking at the food I cook and I make sure that everything is budget worthy and cheap meals are at the forefront of what I believe in. I don’t believe that healthy food has to be expensive.

This is a cheap Weetabix cake coming in at only £0.04 a portion and £0.44 for the whole cake! I know that a bag of chocolate might taste better but this will go further and everyone can enjoy it!

I’m always looking for ways to make cheap dinners and cheap healthy meals so make sure you check out all my recipes and see how much they cost in the recipe card, you might be surprised!

Budget Friendly Cakes - cheap healthy cakes recipes

Weetabix Cake Recipe

This is a super easy slimming world recipe to make, the longest part is how long it takes to bake in the oven which can be frustrating. Once the timer is up, just stick it with a nifty cake tester and if it comes out clean you know it’s done!

Let me know what you thought about this recipe in the comments. Have you always wanted to try a Weetabix cake like me and never got round to it? Or did you think it sounded disgusting but finally gave in to peer pressure and gave it a go?

If you’re looking for more weird and wonderful recipes I would suggest my slimming world diet coke gammon recipe. It tastes amazing and I know a lot of people can’t get enough of it from all the amazing Instagram pictures I’ve been getting!

Easy Slimming World Weetabix Cake Recipe

Easy Slimming World Weetabix Cake Recipe

This is a healthy cake that tastes amazing.
Prep Time 10 minutes
Cook Time 1 hour
Total Time 1 hour 10 minutes
Course Cake, Dessert
Cuisine Dessert, Slimming World
Servings 12 Slices
Calories 86 kcal


  • Mixing Bowl
  • Silicone Spatrula
  • Loaf Tin
  • Loaf Tin Liner


  • 2 Weetabix crushed
  • 200 ml Skimmed Milk
  • 100 g Sultanas
  • 100 g Self-Raising Flour 16 Syns
  • 1 tsp Mixed Spice
  • 2 tbsp Sweetener 3 Syns
  • 2 Eggs


  • Preheat your oven to 180°C/fan 160°C/gas 4 and a loaf tin liner to the loaf tin.
  • Crush the Weetabix and put in a large bowl and pour in the milk. Leave for 2-3 minutes, then mix it together.
  • Add the rest of the ingredients into the Weetabix mixture and combine until it is mixed properly.
  • Add the mixture into the lined loaf tin.
  • Cook for 1 hour.
  • Once cooked, put it on a wire rack to cool. Once cooled, cut into 12 slices and enjoy.


*Prices correct as of April 2021
*This is 3.5 Syns per serving.
Weetabix 2 136 kcal £0.06
Milk (Skimmed) 200 ml 68 kcal £0.10
Sultanas 100 g 302 kcal £0.20
Self Raising Flour 100g 354 kcal £0.03
Sweetener 2 tbsp 10 kcal £0.05
Mixed Spice 1 tsp 12 kcal £0.10
Egg 2 144 kcal £0.30
TOTAL   1026 kcal £0.44
PER SERVING   86 kcal £0.04
Keyword Desserts, Slimming World, Treats

If you loved this recipe as much as I do don’t forget to add the Mattscafe slimming world Weetabix cake recipe to your Pinterest so that others can find it and enjoy it as well! Don’t forget to leave me a comment if you tried it!

Easy Slimming World Weetabix Cake Recipe

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