Rainbow Birthday Cake

 One of my besties birthday was this past weekend and naturally I wanted to make him a birthday cake. I saw this layered rainbow cake on a blog I follow a few months ago and I knew at that moment him + the rainbow cake = a match made in heaven. He loved it, everyone loved it, I was happy and considering my blog is in dire need of an update,  I'm going to talk about it.

This is such a fun cake, especially for summer or birthdays or anything festive to celebrate. Some birthday cakes can be so one-note, so instead of just layering cake/frosting/cake, I soaked each layer  in a vanilla syrup and filled it with some blackberry preserves as well. The purple frosting piped on the top and sides is also a blackberry buttercream to keep with the theme. If you don't like blackberries, you can use strawberries, raspberries, etc.