Monday, 5 April 2010

Rainbow Birthday Cake with White Chocolate Icing


I wanted to make a spectacular cake for Cameron's tenth birthday and when I saw Amanda's Rainbow Cake, I knew I'd found what I was looking for - it's amazing!
I adapted her recipe in several ways but the advice and instructions in her blog were what made the cake successful.

I used a basic victoria sponge recipe. Each layer was made of half a cup of cake mixture, coloured with professional sugarcraft food colouring (to achieve the vivid colours without a ridiculous quantity of e-numbers) - I bought mine from a local shop but they are widely available online in places like eBay [links to a search for them]. The food colouring is quite expensive, but you only need a tiny amount to get really amazing colours.

I baked each layer in a 5inch cake tin and leveled and froze them when they were cool,until I was ready to assemble the cake.

For the icing, I wanted to make white chocolate ganache (white chocolate is Cameron's fave) and I made the ganache recipe from Nigella's site, however, after several hours of cooling in the fridge, it wasn't anywhere near the consistency I needed to keep the tall cake together and secure so I beat in some marscapone cream cheese. The icing was satisfyingly thick and delicious, if I do say so myself!

I assembled the frozen layers, one at a time, iced around the edges as I went along and then piped around the top and bottom.
Star shaped rainbow sprinkles finished it off and I left it overnight to defrost - hoping that the colours wouldn't run or any of the other horrific things I imagined as I tossed and turned in bed that evening!


The cake itself wasn't difficult to make but it took quite a lot of time. Icing isn't my best skill so I found that challenging, but now I have confidence in the knowledge that it works, I'd have no hesitations about making it again, or with a differing design (more variation ideas in Amanda's baking group on flickr).



The moment I cut into the cake and pulled the first slice away - everyone in the room wowed in amazement, including me!

14 comments:

Lynn said...

You are so clever! It looks fab:-)
Happy Birthday Cameron.xx

TheMadHouse said...

What a fantastic, super duper, amazing cake, which look great before you even cut into it. I am dead impressed!

Buffybaskey said...

fantastic!! perfect ! well done :-) xxx

Amanda said...

I love all your choices.. its sounds like one of the most delicious cakes EVER!! And your execution is flawless!

Blessings-
Amanda

Wendy said...

That looks absolutely stunning!

Margaret said...

What a fabulous cake!

Heather Davis said...

Wow that is a gasp inspiring cake! What a lucky boy. I want one for my birthday. I also saw Amanda's recipe and was slightly put off by the checkerboard effect but now I've seen it in layers it seems much more "doable"! Thanks.

Mel said...

Wow that is amazing! I want a cake like that, too bad my birthdays just passed, oh well I guess it doesnt need to be a birthday to eat cake!

Happy Birthday to Cameron :)

Janice said...

That's fabulous, what a great birthday cake.

Cathy at NurtureStore said...

Bravo!

skippinginthemeadow said...

wow! that really is spectacular!!

skippinginthemeadow said...

happy 10th birthday Cameron :o)

Emily said...

Wow!! that is awesome!! love it x

gardenmama said...

*WOW* Is right!! : )