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A sprinkle-coated colorful cake makes a beautiful centerpiece dessert for a party. Learn how to decorate a rainbow cake like a pro with my easy-to-follow tutorial.

How to Decorate a Rainbow Cake with Sprinkles - The blog post and included video will show you my favorite method for covering a buttercream cake with an even layer of sprinkles. With easy to follow instructions, even a home baker can achieve professional results.

Rainbow cakes make me so happy, and it was one of my favorite designs to make with my home bakery. I actually started making them because I agreed to donate a cake to a silent auction for a local organization, and one of the ladies posted a pinterest picture of a layered rainbow cake. I offered to make it, but I knew I couldn’t just frost it in white, I had to make it special! The cake needed to be something fabulous and fun on the outside as well as the inside, so I covered it in sprinkles and piped little frosting stars up top. It was beautiful and did so well at the auction I had 3 additional cakes ordered the week after for future events, and the rainbow cake – decorated as pictured – became a Goodie Godmother signature. Now I’m going to show you how to decorate a rainbow cake so you can make one at home!ย 

 

I used my yellow cake recipe for the cake layers, divided the batter in 6 equal portions (a digital kitchen scale really comes in handy here), and colored with gel food coloring.

How to Decorate a Rainbow Cake with Sprinkles - The blog post and included video will show you my favorite method for covering a buttercream cake with an even layer of sprinkles. With easy to follow instructions, even a home baker can achieve professional results.

To get the correct quantity of batter for each layer of cake, weigh your bowl and mixed batter, subtract the weight of the empty bowl, and divide by 6. If you are mixing your cake in the standard 5-quart KitchenAid mixer bowl, the bowl weighs 29 ounces. If you are mixing in a standard mixing bowl using a hand mixer or another model of stand mixer, weigh the bowl before you start baking your cake.

How to Decorate a Rainbow Cake with Sprinkles - The blog post and included video will show you my favorite method for covering a buttercream cake with an even layer of sprinkles. With easy to follow instructions, even a home baker can achieve professional results.

Photo Credit: Folks Photography
The green layer is missing here… I’m not sure how that happened! ๐Ÿ˜‰

If you have 6 6″ round cake pans, you can bake the layers all at once, but I don’t, I have two, so I bake the layers two at a time. The yellow cake recipe layers bake in about 18-20 minutes for this cake. Once the cake layers are baked and cooled, use a cake level or serrated knife to trim any domed tops. Make the extras into cake “sandwiches” with spare frosting. Other humans of all ages will love you. Use Swiss meringue buttercream, or your favorite not-crusting buttercream as frosting. If you use a crusting buttercream, have your sprinkles and everything ready so you finish decorating the cake before the frosting crusts, otherwise the sprinkles won’t stick as nicely.

I will now leave you to a video tutorial to explain how I cover the cake in sprinkles to get the best results…

I hope you enjoyed myย tutorial on how to decorate a rainbow cake! I bet you’re also pretty excited that this is the last one filmed on my old video camera. The next one will be filmed with my new camera and look much better! ๐Ÿ˜‰

How to Decorate a Rainbow Cake with Sprinkles - The blog post and included video will show you my favorite method for covering a buttercream cake with an even layer of sprinkles. With easy to follow instructions, even a home baker can achieve professional results.

Don’t forget to pin for later…

How to Decorate a Rainbow Cake with Sprinkles - The blog post and included video will show you my favorite method for covering a buttercream cake with an even layer of sprinkles. With easy to follow instructions, even a home baker can achieve professional results.

Love it? Share it!Share on FacebookPin on PinterestTweet about this on TwitterShare on YummlyShare on Google+Share on StumbleUponEmail this to someone
This Post Has 6 Comments
  1. Ok. First of all, loved the video. Second, you have way more patience than I. Gently glide your hand up without touching the cake and let the sprinkles fall onto the cake? Me? I’d be throwing those sprinkles onto the cake like there was no tomorrow. And you would have been right. I would have found sprinkles all over my kitchen for years to come.

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