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Sunshiny Day Rainbow Cakes

Sunshiny day rainbow cakes are perfect for a day like today.

It’s raining inside and out, the wind is blowing a gale, the weather front across the world is as depressing as it gets, yet still, here in a small corner of the UK, a young girl close to my heart has the power to brighten up the world. Her insistence to make a rainbow cake, with a two eyed sunshine spurred me along. Amongst the bright pans of beautifully coloured buttercream, multiple piping bags and a carefully shaped arch, there it was, a rainbow in our kitchen and a little ray of sunshine called Keira working her sparkle! #Happydays

Sunshiny Day Rainbow Cakes
Prep time
Cook time
Total time
Sunshiny day rainbow cakes, ideal for all those bad weather moments in life. Cake to stop the rain inside and out and to fill your world with sparkles. #happydays
Recipe type: Cake
Cuisine: British Bakes
  • For the Sponge
  • 350g unsalted butter
  • 350g caster sugar
  • 300g plain flour
  • 50g cornflour
  • 5 tablespoons of milk
  • 4 teaspoons baking powder
  • 2 teaspoons of vanilla extract
  • 6 eggs
  • 50g good quality coco powder
  • a few drops of red food colouring
  • For the Buttercream
  • 400g unsalted butter
  • 800g icing sugar
  • 2 teaspoons of vanilla extract
  • 4 tablespoons of milk
  • A variety of food colourings
  • For the decoration
  • 200g raspberry jam
  • Chocolate or coloured sprinkles
  • 2 x 30cm cake tins
  • lots of piping bags!
  1. Preheat the oven to 180oc/160oc fan/gas mark 4 & grease the two cake tins
  2. Cream the butter, sugar, and vanilla extract until pale.
  3. Gradually beat in the eggs one at a time
  4. Sift the cornflour, baking powder and salt into the bowl and mix until you have a silky batter
  5. Divide the cake mix, add the coco powder to one half and the red food colouring to the other. Mix.
  6. Place separately into the pre greased tins or cupcake case and bake for 35 mins (15 for cupcakes)
  7. Leave to cool and tip the cake out of tins
  8. Jam on side and place the two cakes on top of each other. cut a circle out of the middle.
  9. Cut the cake in half, speed with jam and stack the other two layers on top, forming the arch.
  10. To make the buttercream, mix ingredients together and separate equal amounts into 7 bowls
  11. Add a few drops of each food colouring to each bowl. Red, orange,yellow, green, blue and violet.
  12. Leave one bowl without colour to use on the edges of the cake.
  13. Add the sprinkles to the outer edges.
  14. Fill 6 piping bags, with star nozzles one for each colour and pipe the rainbow design on top.
  15. If you have made the cupcakes, use the piping bags to make your own colourful rainbow designs!

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