
You will need:
- 300g self raising flour
- 300g margarine
- 300g granulated or caster sugar
- 6 eggs (free ranged!)
- 2tsp baking powder
- 2tsp vanilla extract
- whipping cream (for inside)
Step 1:
I am always one for the 'all in one' method but if you have baked cakes before and have found a different method better for you then use that. But I just put all my ingredients in a large mixing bowl and whisked until light and creamy.

Step 2: Separate your mixture into 6 equal different bowls (one for each colour!) And carefully add your colouring into each mix. Be careful! Some colourings can be stronger than others and you don't want to end up with the wrong colours. 
Step 3: Once you have your desired colours then grease 6 round baking tins or line them with baking paper. Then spoon your mixtures into separate tins and pop them in the oven!Step 4: Whilst your cakes are in the oven for aprox. 15 - 20 minutes (if you have a small oven you will have to do them in two batches) you can get to making the butter icing.
You will need:
- 175g icing sugar
- 75g butter (room temp)
- a dash of milk
Step 5: If your cakes are still in the oven then grab another bowl and pour out your whipping cream. Then use an electric whisk (or a hand whisk if you prefer) to whip the cream. You have to be careful here as whipping cream is very easy to overdo. Whip until the cream is light, thick and stiff. At this point grab your cakes out the oven and place them on a cooling rack.

Step 6: Once your cakes are cool and you have taken them out of the tins then it is time to construct your rainbow cake. Start off with purple at the bottom and use whipped cream between each layer and work your way up through the rainbow. Purple, blue, green, yellow, orange and red.
Then grab your butter icing and start gently covering the cake. I started by covering the top with a flat spatula then used a piping bag for the edges. This gave a nice rippled effect on the sides. You don't have to cover the whole cake but I thought it would be nice because then there is the element of surprise when you cut open the cake. And to finish it off what more could you want then a good sprinkling of Hundreds & Thousands. Go crazy!
Thank you for reading this post! I have wanted to do this post for a while but I haven't because I'm not an expert baker but it was so fun making this and tasted delicious! I hope I have inspired you to make your own rainbow cake and I hope you are all having a brilliant week.
Love, Scarlet x




