Rainbow Cake

If you’re a Pinterest addict like me then you will have surely seen the infamous ‘Rainbow Cake’ which has been the highlight of many a ‘Baking’ or ‘Party’ board. I couldn’t resist having a go at making it and I think it came out pretty well!

rainbow cake slice

I did a bit of research and I found out that the secret to making the colours so vibrant is to use gel food colouring and make the batter by using a white cake recipe… genius! I used this recipe fromI Am Baker and it was delicious even if I do say so myself. The frosting was a simple cream cheese/butter concoction and you do not want to know how many calories are in a single slice…

rainbow cake

It was actually pretty simple to make and really does pack a punch! Here’s how I made it:

  • Make up your white cake batter according to the recipe above. I found that it makes the perfect amount of batter for 4 18 inch cake tins.
  • Divide up your batter into 4 seperate bowls. I did this by weighing the bowls, zeroing the scales and then pouring 350g of batter into each one.
  • Pick out the colours you want to use and then add tiny amounts until you get your desired colour. I bought a set of 8 gel food colours from Amazon (affiliate link) and they will honestly last forever because you use so little each time!
  • Transfer your batter to greased and lined cake tins and then bake them in the centre of the over according to the recipe. (I had to eyeball it because my oven is terrible. Basically take them out when they look firm and start to take on a tinge of gold around the edges – scientific, right?)
  • Leave your 4 cakes to cool completely and then stack them up in a rainbow-like fashion, securing each layer with some frosting which you lovingly prepared earlier.
  • Cover the top and sides of your cake with frosting and then try to stay calm when you cut into it and reveal all of those wonderful colours 🙂

I challenge you to have a go at making this show-stopper! If you do, send me a picture of your creation on Twitter (@BoldlyGold) so that I can applaud your creativity 🙂


6 thoughts on “Rainbow Cake

  1. Being one of Amy’s lucky cake tasters, I can only say this one is to die for!!!! Wanted to lick the plate

  2. this is what granddaughter has requested for her birthday next month, except it is to be hollow in the middle and filled with skittles. Yours must be some size of cake with 18 inch tins.

    1. It was quite big although I didn’t fill the cake tins all the way. I think it would be quite simple to put skittles in the middle of it… Once assembled just cut the middle out! Great idea 🙂

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