H O M E .      A B O U T .      C O N T A C T .      T U M B L R .      T H E   B O O K   J O U R N A L .      sailorjennie [at] gmail [dot] com

Wednesday, 28 September 2011

Jennie Makes: A Rainbow Cake.

I can’t believe it’s taken me so long to post my rainbow cake recipe. Thank you to everyone that has reminded me! I used a basic Victoria sponge recipe for the basis of the cake and for this I followed this recipe here by Mary Berry who I think is fabulous! I just adapted it slightly to create a third layer and to get the rainbow effect.

If you want to make a classic two layer cake you will need:

225g / 8oz caster sugar.
225g / 8oz self-raising flour.
225g / 8oz butter or margerine. This recipe works well with either in my opinion!
2 tsp baking powder.
4 free range eggs.
Gel Food Colouring.
Strawberry or Raspberry Jam.
Icing (optional!)

If it’s a cake for a special occasion and you want to make a third layer you will need:

338g / 12oz caster sugar
338g / 12oz self-raising flour.
338g / 12oz butter or margerine.
3 tsp baking powder.
6 free range eggs.
Gel Food Colouring.
Strawberry or Raspberry Jam.
Icing (optional)

Step One. Preheat the oven to 180C / 350F / Gas Mark 4.

Step Two. Grease and line two or three (depending on your choice of cake) 8 or 9 inch sandwich tins. Use baking paper to line the bottom of the tins and butter or margerine to grease the sides.

Step Three. Break the eggs into a large mixing bowl and add the sugar, flour, baking powder and butter.

Step Four. Mix everything together until it’s all combined. You can use a wooden spoon for this, it’ll just take a bit longer so it’s easier to use an electric hand whisk. The mixture should be a soft dropping consistency.

Step Five. Divide the mixture equally between six bowls and add a small amount of each of your food colouring colours into each bowl. Mix it thoroughly together until each colour is as bright as you’d like it to be. I used red, yellow, green, orange, blue and purple food colouring.

Step Six. Now it’s time to pop the mixture into the sandwich tins for baking. Each tin will have every colour mixture in it. You will need to use more mixture for the first colour in the tin to ensure that everything doesn’t mix together too quickly.

For example for the tin in the top picture (just above) I used:

One tablespoon of purple
Two tablespoons of blue
Three tablespoons of green
Four tablespoons of yellow
Five tablespoons of orange
Six tablespoons of red

For the tin in the second picture I used:

One tablespoon of yellow
Two tablespoons of orange
Three tablespoons of red
Four tablespoons of green
Five tablespoons of blue
Six tablespoons of purple.

I hope that’s clear enough, I’ve found describing what I did super difficult – I should have filmed myself baking it because that would have been easier!

Step Seven. Bake your layers on the middle shelf of the oven (you may need to to this in stages especially if you’re doing three layers) for around 25 minutes. I tend to check on them after 20 minutes. They should be springy to the touch.

Step Eight. Let the cakes cool for a while before running a knife gently round the edges and turning the cakes out on to a cooling rack. You will have something that looks like these.

Step Nine. When all your layers have cooled completely you can begin to assemble them. You can use whatever you want between the layers, I opted for a small amount of icing and some strawberry jam. You can use whipped cream instead of icing, or anything you’d like.

Step Ten. You can then leave it like that with the rainbow colours on show. I was baking this cake as a birthday cake and wanted it to be a surprise so I decided to completely ice the outside. Now I cheated and my icing came from a pot thanks to Betty Crocker but you can of course make your own with butter and icing sugar. I opted to colour the white icing blue because my boyfriend likes blue but you obviously don’t have to or you could opt for another colour. The easiest way I found to ice the cake was to put little splodges all over and then smooth it over with a blunt knife.

And there you go, one finished cake! This isn’t a cake I’d recommend baking all the time or eating a lot of purely because of all that food colouring. But it’s fun and definitely makes a birthday cake that will leave people talking!

When you cut it open you can see it in all its colourful glory and I was super proud of how mine turned out especially because this was the first time I’d ever attempted to make a rainbow cake!

Have you ever made a rainbow cake before? Do you think you'll give this a go one day?

P.S. I got my gel food colouring from ebay for about £12 for 6 colours. I find gel colouring to be more intense than liquid! 


  1. I love how colourful this is, and so yummy looking too mm :)

    Louisejoyb xo | Bits&Bobs

  2. mmmmmm, this looks so good! x

  3. The colours are just amazing! I'm determined to try this on the weekend! <3 xoxo

  4. this looks so amazing, we used to make rainbow cake when we werre younger, you have inspired me to try again!:)

  5. WOW! That's really cool! I absolutely LOVE Mary Berry. I have all the "fancy shmancy" cupcake books but I always go back to MB's "Baking Bible" :) xx

  6. Wow!! I've seen these done before and yours looks fab. I don't blame you for using Betty Crocker frosting though, it's so yummy. My mum always cheats and uses it because it's so nice. I might have to give this a go sometime! xx

  7. This looks so tasty!! I'm definitely going to have to try this sometime soon, thanks for sharing xx

  8. Wow, awesome! I want to make one :)

  9. SO adorable and yummy looking. xx

  10. wow it looks amazing defiantly want to attempt making this sometime!:)xx

  11. This is a great tutorial. I love making rainbow cakes, and I love the way you coloured the icing! xx

  12. looks amaaaaaaazing! tempted to try one myself:)

  13. this looks awesome! it's my boyfriend's birthday soon and i'm definitely going to try this out! thanks :) x

  14. This looks amazing! I really want to try it, just need an occasion... It's the weekend soon, that'll do right!?


  15. It looks amazing! Think I might try to make one next time all my family are together :) xx

  16. Wow, this looks amazing! I wish I had the baking skill to attempt something like this. x

  17. You would want to cut that with a bad head!

    Joking aside my kids used to love these, we had all sorts of colours.

    X x

  18. Haha, this looks amazing! I've seen the rainbow cakes where you make loads of thing sponges in a different colour each and then pile them all together, ice and then cut open and it's all in neat little layers, but haven't ever seen anything like this! looks so good though, might try it.

    Lucy xxx

  19. wow thats lovelyyy, thanks for the recipe. I might try this soon :D x

  20. That's a stunner of a cake, puts me in mind of smurfs, I wonder why?!


  21. Woah! Amazing!! I'll definitely try picking up some of the gel colourings xx

  22. That looks amazing!

  23. Wow!! I love it- looks fantastic!xx

  24. This would be great for a childs birthday party or just to make someone happy. I love it.



  25. Never seen anything like this, it looks great! I'm promising myself I will make this at some point this year..

  26. Wow this cake is so pretty! I must make it some time :)

  27. 'mazing!!!! i've been meaning to attempt a rainbow cake for ages... am defo going to give it a go! xx

  28. That is amazing! I want to make cupcake versions. I have a terrible feeling that if I made one large cake I would either end up eating a majority of it (my boyfriend would have a slice, and I would demolish the rest) or we would never manage to finish it.

  29. This looks so utterly scrumptious! Must try this recipe out ♥ xxx

  30. This looks so utterly scrumptious! Must try this recipe out ♥ xxx


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