First, this didn't turn out quite how I'd expected. I should have either used 2 lots of the cake mix or used smaller tins, also I didn't realise until it was pointed out to me that I should have used flower paste or Mexican paste for the letter as the cutters I bought for decoration don't work on fondant so I had to make the letters by hand (and late at night when I was mad at the icing and cutters) so they aren't great, bur really, it's a rainbow cake, who's going to care about the outside.
I made this for my son's 1st birthday. I got a lot of help and inspiration from friends. Also I'd like to say I cheated on this quite a bit, but mainly because it calls for a while cake mix and looking on line for how to make a white cake it called for all sorts of things that I had no idea what they were.
To make the colours really stand out you are going to need gel food colouring as this is much more vibrant than the liquid stuff you can get in the supermarket. It's pretty easy to use and work with, but if it gets on your skin your dyed (I currently have blue, green and red fingers)
For the added "WOW" for the grown-ups I covered it in white ready roll fondant icing (there is no way I'm making my own!!) so the un-suspecting adults were just expecting a cake nicely decorated but instead had a huge wow of the colours of the cake.
So, for the cake....
INGREDIENTS:
1 box of Betty Crocker WHITE cake mix (you can only get this off the internet unless you happen to have an american grocery shop near you)
3 egg whites
1/3 cup vegetable oil
1 1/4 cup water
6 gel food colourings (I bought Sugarfalir ones)
METHOD:
Mix everything in a bowel with an electric hand mixer until smooth
Put equal amounts of the cake mix into separate small bowels. I used a ladle.
Use a cocktail stick to put the food colouring into the mix and stir (I actually found the red really hard to work it but I got there in the end. Also, yes they are weaning spoons!!)
Then pour the mix into the baking trays, most in the bottom layer and work your way up
Bake at 170oC for 25 minuets or until a cocktail stick pushed into the centre comes out clean (Someone came to the door just as it was time to take them out the oven so they were cooked a bit too long and spit, but they will be fine)
Wait for them to cool slightly then turn them out onto a cooling tray and wait to cool completely before decorating.
TO DECORATE
Obviously you can decorate it how ever you like but this is what I did.
INGREDIENTS:
Jam
butter cream (you can easily make your own but I bought white from the supermarket)
ready roll fondant icing (again, you can make your own but I also cheated and got it from the supermarket)
Gel food colouring
METHOD:
Put jam and butter cream on the top of one of the cakes and place the other talk on top
Then cover the while cake in butter cream so the fondant has something to stick to. Smooth with a spatula or pallet knife and put in the fridge to harden
Cover a clean work surface in icing sugar and kneed the fondant until it reaches a workable consistency (it's a bit like play dough). Then roll the fondant out until it is around 3mm/4mm thick, taking care to have plenty of icing sugar to stop it sticking.
Carefully pick it up, rolling it round the rolling pin and draping it over the cake. Then smooth it down and cut off any excess (there are loads of videos on Youtube on how to use fondant icing)
To colour the fondant use a cocktail stick to put some of the food colouring onto the fondant. Then (I'd recommend you wear food grade gloves so you don't die your hand) kneed the colour in. It doesn't take long before you start seeing it change colour.
If it's not as dark as you'd like then ass more and kneed again. Remember to use plenty of icing sugar to prevent sticking
When all the colours are kneaded in you can decorate it how you like (I was going to put small letters on the cake but the cutters were meant for use with flower pate or Mexican paste)
If the fondant starts getting a little dry when your working with it then kneed it again and it softens up
And to stick the fondant down just use a little water
Also once it was dry all the icing sugar faded so it's not covered in white specks
It went down amazingly. Everyone was really shocked and quite surprised why I wanted them all to look at it before it was cut! I'm so glad I made it