Rainbow Cake

This is quite involved, so you might want to make it for the Fair, or keep it in the vault for your next special birthday. Use the butter cake mixture below (which is actually three times the amount required for a normal cake) or buy three vanilla packet mixes. Another tip! Use the special gel colours from cake making shops to get this sort of brilliant colour.

4 1/2 cups of self raising flour
3 cups white sugar
1 1/2 cups of milk
6 eggs
375g (4 oz) butter, melted
3 tsps vanilla extract.

Preheat oven to 180oC conventional. Put all ingredients in a bowl and beat on medium speed for five minutes. That's it.
Divide your mixture up into the number of layers you want. You'll need about 1 1/2 cups of mixture per layer. Colour them their separate colours and bake each in about a 22cm tin for around 12 minutes.

To ice: trim the rounded tops of each one so the layers are completely flat ( you could use the offcuts for some psychodelic trifle?), and turn over so you are icing the firmer bottom.
Make an icing mix from icing sugar, butter and warm water and 'glue' the layers together. Coat the whole cake in a thin layer of icing and refrigerate for at least an hour for it go hard. This is called the 'crumb layer'.
Ice over the whole cake once the crumb layer is firm and you won't have crumbs in your icing.
Finish off with sprinkles, etc.