This cake was so simple to make! I love that it looks so amazing and is so easy to do.
I just started with three boxes of white cake mix. I mixed them up according to the package directions and separated the batter into six bowls.
Add the food coloring or food gel (as in this case) to each of the bowls.
I absolutely love these AmeriColor food gels. And these were the colors I used for this cake.
Mix the coloring into the batter and pour the batter into greased and floured 9-inch cake pans.
Bake according to the package instructions.
Allow to cool on racks.
When you're ready to assemble the cake, cut the tops off of each cake so you have a nice even cake.
I like to use this Whipped frosting. It's easier to work with and it's stickier for longer, great for when you want to decorate with candy.
Layer each of the cakes in the order that you'd like. I did purple, blue, green, red, orange, and yellow, slathering frosting in between each layer.
If you're worried that the cake will tilt and topple, you can use a few wooden skewers in the middle to hold it in place.
Then frost the entire outside of the cake with more frosting.
You don't have to worry about it looking perfect. It'll be covered with Skittles shortly.
Arrange Skittles in any rainbow pattern that you'd like. You can totally be creative here.
Top with candles and Rainbow Dash (for our Rainbow Dash Rainbow Party).
So, so easy, yet so, so impressive.