Have you seen the rainbow cake at Omnomicom and this one by Anony Mouse in the “Goons with Spoons” forum? Shelterrific friend Cassie Hunt did. She decided to make a sheet cake version, and we thought it would be a perfect salute to Earth Day — subject-matter-wise, at least. Thanks, Cassie!
I made the cake at night and told my daughters Ruby and Violet that the Easter Bunny made it for them. My only suggestion is to use a smaller pan (like the 8 inch round ones). I ended up using a 13X9, and the pan was too big to get the full effect of the rainbow. However, when I cut into it, Ruby actually SQUEALED with delight and said, “Look, look, it’s a rainbow!” –Cassie Hunt
Here are the recipes if you want to try yourself! (Note that Omnomicom came up with a fat-free version, so if you don’t want to add diet soda to your recipe, follow Anony Mouse’s directions at Goons with Spoons instead.)
Omnomicom’s fat-free rainbow cake
Anony Mouse’s original rainbow cake