My beautiful cousin Marina is a phenomenal baker. Even at fifteen, she is a much better baker than I. She makes all kinds of baked goodness, I especially love her delicious brownies from scratch. So it made sense that when I came across this Rainbow Cake on Love and Olive Oil's blog, I immediately contacted Marina and asked her if she wanted to take on the challenge. Without hesitation she took on the challenge and baked it for her 15th birthday party. I think she did a mighty awesome job, don't you?