Well I saw this cake on a blog online and I just couldn't resist, I had to make it! :-)
So I made it my own and this is how I did it.
2 packets of butter cake mix (or vanilla or lemon, or anything that has no colour to it really).
Lots of icing (I made cream cheese icing)
Smarties, m&ms or 100s&1000s to decorate
Red, blue, yellow and green food colouring
Strawberry jam
Whipping cream
Make up your packet cake mix in a bowl, but before you do, weigh the bowl and remember the weight! When made, measure out 1/6 of your mixture into a smaller bowl and add red food colouring.
Pour into a cake tin and bake - there won't be much mixture - I used a 23cm tin and it was just enough mixture to cover the bottom of the tin. It only takes about 15 mins to bake or so.
When cooked, put on a cooling rack and repeat with orange (red and yellow), yellow, green, blue and purple (blue and red) food colouring. You will then have 6 cakes. If you have 2 tins, you can obviously cook 2 at a time - but make sure they are the same size tin!!!
When the cakes are all cooked and cooled, then you layer them. I started with red on the bottom, and spread some warmed strawberry jam on each layer, and then some whipped cream. Be careful how much you use, as it is a VERY sweet cake - less is best. Also don't get the cream too close to the edges as you don't want it to squelch out.Layer them all up, and then cover the entire thing with icing, and decorate. I used a cream cheese icing, and had it slightly runny, so it just oozed down the sides of the cake - easy! But a thick harder icing will work just as well.
I decorated with some smarties and popped in the fridge.
