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Tag: rainbow cake

One Pan Rainbow Cake

I know you’ve all seen them. The tall cake, covered in white buttercream icing with the rainbow surprise waiting on the inside.

That cake is big enough to feed a huge birthday party and while I wanted to make something similar for Phoenix’s birthday last year, I knew the leftovers from such a big cake wouldn’t be eaten, so I opted for a smaller, unique cake.

Rainbow Cake

I’d seen this technique before but with only two colours so had the idea to try it as a multi-coloured rainbow for a smaller cake, and it worked beautifully. For the cake mix I used two gluten free vanilla cake’s and substituted the butter for coconut oil.

After combining all the ingredients I separated the mixture into five bowls and added gel food colouring. I know, I know, there are healthier options but I wanted the vibrant colours you can only get from gel. And it’s a once-a-year birthday cake.

I then put a table spoon into each bowl and that was my measuring spoon. I lined up all the bowls and into my greased cake tin I put one dollop of each colour, one after the other, always into the centre of the pan. As the mixture got heavier it forced the previous colours out. Looking like:


Then because it was Phoenix’s birthday, you have to let them lick the bowls….


After the cake was baked and cooled I made up the buttercream icing that came with the packet mix but used coconut yoghurt instead of butter. I slathered that onto the cake then covered it in pink fondant (it’s Phoenix’s favourite colour), a painstakingly cut out number 3 and some edible glitter, cos’ at this point it what it really needs is more sugar…


But the end result was a beautifully moist one pan rainbow cake and one happy little girl. Less dishes = happy Mum too!

Rainbow Cake

Happy Rainbow Cake!


Noah’s been asking me a lot lately to make a Rainbow Cake. He’s currently obsessed with Rainbows and colours and is always obsessed with Cake, so it was just natural really. And I can’t blame him, who doesn’t like a good bit of cake now and then?

Last Sunday I didn’t have any plans, so when he asked me again, I happily said yes! It was the first of MANY things I cooked that day, but it brought the biggest smiles to my gorgeous kids faces so it was totally worth it!

When was the last time you made a cake, just because? I dare you to do it!

For the batter I converted a basic One Bowl Plain Cake recipe from my ‘Day to Day Cookery’ book to a Thermomix Rainbow Cake recipe.

Happy Rainbow Cake

You’ll need:

  • 1 1/2 Cups SR Flour
  • 1/2 Teaspoon Baking Powder
  • 125g Butter, softened
  • 2/3 Cup Raw Sugar
  • 2 Eggs
  • Vanilla
  • 1/3 Cup Milk.
  • 4 different food colours
  • 200g Raw Sugar
  • 100g Butter
  • 1 Egg White
  • 100’s and 1000’s.


  1. Preheat oven to 180C.
  2. Mill the Raw Sugar in the Thermomix for 10 Seconds / Speed 9. Scrape down sides.
  3. Add rest of the ingredients excluding the colourings and mix for 1 Minute / Speed 7. 
  4. Pour the batter into four containers and add a different colour to each one and mix throughly: IMG_1715
  5. Pour each colour into a lined and greased baking pan (I used a heart shaped one) one after the other, ensuring you always pour into the middle of the pan for each one: IMG_1714
  6. Bake for 20 – 30 Minutes, or when a skewer comes out clean. Allow to cool.  IMG_1720
  7. For the icing, mill the 200g of Raw Sugar in the Thermomix for 30 Seconds / Speed 10 into Icing Sugar and scrape down sides. Add the butter and egg white and whip together for 30 Seconds / Speed 7. Cover the cooled cake in the icing then top with the 100’s and 1000’s.
  8. Smile!


While waiting for the cake to cool, my two pulled their chairs into the kitchen and stood guard at the stove top, waiting very impatiently. Noah declared that they were the boss of the cake and they both crossed their arms and ‘Humph-ed’ at me. Oh god it was cute!