Rainbow Cake with Sprinkles
This cake is made with just sprinkles. For very young toddlers who haven't mastered the art of eating M&Ms, much less strategically placing them on a cake, sprinkles are the way to go.
The Rainbow in This Cake Starts with the Batter
If you want to forgo the frosting and candies altogether, try this color explosion and then leave it unfrosted or cut the pieces into squares and top with whipped cream or yogurt.
All the Colors of the Rainbow
Who needs to follow a rainbow pattern? Just make sure you've got all the colors and plaster the whole thing with candies. Awesome.
Rainbow Cake
This one is great. Instead of trying to be neat about the frosting, they cut round layers in half and stood them on end, with frosting as the mortar between the colored cake layers.
There's lots of ways to make a rainbow cake and if you start this year, it may just become a fun St. Patrick's Day tradition.