We had a rainbow picnic for my sister’s 21st. We dragged extended family along for the two hour drive to the Gold Coast (where she lived at the time), took over a few tables and (coincidentally rainbow) chairs and covered the area in colourful streamers and balloons. We even had rainbow cups and napkins.
The year before I had made my older sister a rainbow layer cake from a Martha Stewart recipe and Miss 21 requested a replica. I love baking for my family and friends but I like to try new – usually bigger and better – things each time a birthday rolls around (lucky for me, there’s a lot of those in my family).
So I took it a step further and covered the 21st cake in multi-coloured buttercream ‘roses’. It took way longer than I expected and had a disturbing amount of butter and sugar, but it definitely ticked the ‘rainbow’ box and was very popular!
It was soooo rich that this little piece was almost too much!
The birthday girl, dressed appropriately.
Both rainbow layer cakes I have made have got quite a reaction from those who didn’t know what was under the frosting – the first cake more so, because it was covered in white buttercream and my family hadn’t seen this before!
Here’s the original recipe: http://www.marthastewart.com/256688/rainbow-cake