Our friend's daughter turned three over the weekend and I got to make the cake. The party theme was rainbow, so I was very excited to contribute the rainbow cake (and cupcakes - see yesterday's post).

Last year for my birthday, I made an elaborate rainbow cake that used two cake mixes, was six layers tall, and used almost three cans of icing. It was completely over the top! My friend Amanda commented "How will you ever top this? All other cakes will pale in comparison."

Elaborate cake!
I wanted to do something a little more manageable this time around, so I made a four layer rainbow cake, using only red, yellow, green, and blue and needing only one cake mix. It also only required one batch of icing, for which I used my all-time favourite, Marshmallow Buttercream

I sometimes get nervous when I'm cake decorating for other people, as I mostly just wing decorating and hope it works out. My friend Betony had some great decorating ideas that were well within my range of abilities, so I didn't have to stress too much. The inspiration for this cake decoration came from this blog that was linked to on Pinterest. All I had to do was make a sprinkle number '3' for the top and sprinkle up the sides. 

4 layer rainbow cake - pre-decoration
How fricken' adorable is this cake? I love the use of sprinkles. It is so festive! At first the sprinkles didn't want to adhere to the sides of the cake, so I wore a food prep glove and forced fistfuls of sprinkles to stick to the sides. I had a pan under the cake to catch any falling sprinkles, which worked great for reusing them and keeping them off the floor.

Now that is a lot of sprinkles!
For the sprinkle '3', I placed a homemade cookie cutter on the top of the cake and filled it with sprinkles. I pressed the sprinkles down gently to adhere them to the frosting and then carefully removed the cookie cutter.
Homemade Cookie Cutter '3'
Sprinkle '3'
This cake was very fun to make and decorate and everyone at the party enjoyed it. Win!

Posted by Jen B On Tuesday, December 16, 2014 4 comments


  1. Looks really good. Glad you didn't stress too much. It's just food. And you're brilliant. So really, it's not even a fair match. You rock.


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