Healthy Weetabix Cake Recipe

By Penelope Henderson, MSc, RNutr/ 08/16/2023
weetabix cake

My kids enjoy crushing weetabix or using weetabix crumbs that have been collected over time from the packets. So rather than the crumbs being wasted there was no better way than to create a weetabix cake recipe. 

This recipe is great from 6 months upwards. It is particuarly good for babies as they need a good supply of iron from when they start on solids. I created this easy and healthy recipe that can be used as a snack or quick, easy breakfast idea for the whole family.

I share how to make this weetabix cake with the full recipe instructions and how you can make variations of the recipe for different dietary requirements. 

What Is Weetabix?

Weetabix is a fortified wheat cereal most commonly eaten at breakfast time. You can also find other similar cereals called wheat biscuits or wheat bisks. They are palm sized in the shape of a long biscuit. They are most commonly eaten as a breakfast cereal with some milk poured over them.

Is Weetabix Healthy?

It is made from mostly wholegrain wheat flakes with added sugar, salt, vitamins and iron. So it’s a good source of fibre and iron. Note that it does contain some added sugar and salt so use sparingly for babies and young children.

Weetabix is not suitable for babies under 6 months of age because they are not ready for introducing solids at this age. After 6 months it is a healthy breakfast choice with fibre and added vitamins, but it’s also quite high in fibre for a young baby so a high consumption is not recommended. Ensure they get other cereals and a good variety of other foods in the diet too.

A pile of three weetabix

How much iron is in weetabix?

Two weetabix bisks contain around 4.8mg iron, so for a baby to have part of a portion from this they will have a good amount of iron from one meal or snack. 

This recipe also contains an egg so they will get a little iron from that too.


weetabix cake ingredients

Here’s the main ingredients that I included in this recipe in addition to the weetabix.


You can use the branded weetabix or a non branded version like wheat bisks or wheat biscuits. They will work just as well.


This recipe uses self raising flour to give it some lift but you could use alternative flours. 


Bananas provide natural sweetness so there is no need to add sugar to this recipe.

A bunch of ripe bananas on a table on top of a tea towel.


Egg helps to bind the ingredients and give rise to the cake. It is also a good source of iron and other nutrients. 

Plain yoghurt

Use plain yoghurt with no added sugar or sweeteners. This provides a good source of protein and calcium too.

How do you make it?

Step 1. Preheat the oven to 180c.

Step 2. Measure out the weetabix crumbs from the bottom of the cereal container. Or if you don’t have crumbs then crush the 2 weetabix into crumbs using your hands or rolling pin and put into a bowl.

Step 3. Measure the milk and yoghurt. Pour over the weetabix crumbs, stir and leave to soak into the weetabix layer.

Step 4. Meanwhile Peel your ripe bananas. Place in a small bowl and mash with a fork until very liquid.

Step 5. Crack the eggs into the same bowl as the bananas and beat until well combined. Add it all to the weetabix mixture.

Step 6. Weigh and sift the flour over the mixture. Add the baking powder and cinnamon. Cinnamon is optional but I love the extra flavour and touch of sweetness this adds.

Step 7. Grease a loaf tin and pour the mixture inside. Level with a knife so you have an even layer of mixture.

Step 8. Bake for around 45 minutes to 1 hour at 180c.

Step 9. Remove from the oven when well risen and golden. Leave to cool before removing from the tin.

Why this recipe works

  • Easy to make
  • Convenient for on the go breakfasts
  • Can be used for breakfast or a snack
  • Nutritious, high in fibre and no added sugar
  • Stores well for up to a week.


dried fruit including raisins, prunes, apples, dates and apricot pieces on a wooden board.
  • Add dried fruit such as raisins, sultanas, cherries, dried apple pieces, dried mango, shredded coconut, dates, prunes. Just to note that adding dried fruit is not suitable for babies as they could choke on the whole small pieces. This is fine for children aged 1 year and over but you need to chop them up further so they are very finely chopped.
  • Add seeds for extra nutrition such as sunflower or pumpkin seeds. Chop these up until fine or blitz in a food processor to get very fine pieces for babies or young children.
  • Use other cereals If you don’t have weetabix and want to use another cereal then try crushing up shredded wheat or shreddies. They will work well too. 
  • Add dark chocolate for a more special occasion. Do this by drizzling some dark chocolate on top when it is cooked and cold or adding a handful of chocolate chips to the mix before cooking.
  • Swap plain yoghurt for soya yoghurt If you have a little one with a cow’s milk protein allergy then you can swap out the plain yoghurt for a soya yoghurt. However if they are below 1 year then soya may not be suitable but use another dairy alternative.
  • Vegan or dairy free option For vegan children and adults then cows milk and yoghurt can be substituted with soya or other dairy free milk alternative. 

The egg can be substituted with chia egg which can be made with 1 tablespoon of chai seeds mixed with 3 tablespoons of water and left for about 5 minutes until it forms a gel. 

chia seeds mixed with water to make a chia egg

Recipe FAQ

How to serve weetabix cake?

Simply slice and have on its own, or with some chopped fruit. Or you could spread with a little butter for a great snack or quick breakfast on the go.

How easy is it to make? 

It is very easy and its just a case of weighing and mixing ingredients together. There are not many skills involved. If you have young kids involve them and get them to crush the weetabix up with hands or a rolling pin. 

How many does this serve?

It makes about 12 slices but depends on what age you are serving them to. If you are making this for babies or young children then it will stretch further. 

How do I store? 

Once cold, place in an airtight container and it should keep for up a week. 

Can you freeze it?

Yes. If you want to freeze it then it will freeze well. It may be better to pre-slice before freezing and then you can take out what you need, when you want it and simply defrost a slice in the toaster or microwave.

How do I reheat?

If you are reheating a slice from the container or the fridge then it will only require about 10 seconds in the microwave or a low setting in the toaster. 

What do I serve it with?

It is up to you. If you or your child like food plain then it can be eaten on its own or with a little butter. Want to make it into a breakfast or meal then try adding some chopped fruits.

Toppings and Flavours

  • Fruit or fruit puree – add some fresh or tinned fruit of your choice, which has been chopped and placed on the top of the weetabix slice. You can also use homemade fruit puree or from a pouch for extra sweetness.
  • Yoghurt – Use a plain yoghurt and spread a little on the top of the slice when ready to serve.
  • Nut butter spread – such as peanut butter, almond butter or cashew butter. Use a smooth nut butter for young children and spread a little on top of a slice to add extra flavour and protein.
  • Dark chocolate – melt a little dark chocolate and drizzle over the top. Alternatively use a smooth chocolate spread.
  • Maple syrup – drizzle a little maple syrup or honey for an extra bit of sweetness. However honey is only suitable for babies over 1 year old.

Other weetabix recipes you will love

If you like this weetabix cake then I am sure you will love these other weetabix ideas.

In addition here is another recipe that doesn’t use weetabix but is a similar, quick recipe and is low in sugar. Applesauce buns are dairy free and great for young children too.

applesauce buns in silicone cases

weetabix cake

Weetabix cake

A healthy weetabix cake for babies upwards. Perfect for a quick breakfast or snack.
Prep Time 15 minutes
Cook Time 1 hour
Course Breakfast, Snack
Servings 12 people


  • 40 grams weetabix
  • 2 whole bananas ripe
  • 100 grams plain yoghurt unsweetned
  • 100 ml milk
  • 2 medium eggs
  • 150 grams self raising flour
  • 1 tsp baking powder
  • 1 tsp cinnamon


  • Turn the oven on to 180℃.
  • Crumble the weetabix into crumbs or use crumbs from the packet.
  • Add the yoghurt, milk and stir in.
  • Peel and mash the bananas until very sloppy.
  • Add the eggs and beat together until well mixed.
  • Weigh the flour, baking powder and cinnamon and add to the mixture
  • Give it all a good mix and spoon into a greased loaf tin
  • Bake for 45 minutes to 1 hour until risen and golden brown.


Keyword weetabix recipe

Did You Make This recipe?

Make sure to tag me on Instagram @nutrition2nourishflourish so I can see and share your creations!


This cake is one way to use weetabix crumbs but also a great alternative to a typical breakfast bowl of cereal. How do you like to use weetabix?


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Author Penelope Henderson

Hi I’m Penelope Henderson RNutr Registered Nutritionist specialising in children’s nutrition and responsive feeding therapy.

I am a mum of 2, with over 15 years of experience in nutrition. I support parents to feel confident in how and what to feed their child. I hope you find my recipes and nutrition posts useful, so you can enjoy stress free cooking and mealtimes.

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