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Rainbow Bundt Cake

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Rainbow cake

We had rainbows on the brain this month to go with our cloud clutch, but then it sold out so darn fast! (p.s. You on the waitlist for the next one yet? A little birdie told me sugar might be involved but you didn’t hear that from me…) Regardless, you all need a rainbow bundt cake in your life!!!! Mostly because it’s one of the easiest most show-stopping cakes ever. But also just because it’s a rainbow. Ready?

Rainbow cakeRainbow cake

Rainbow cake
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5 from 1 vote

Rainbow Bundt Cake

Servings: 1 Cake

Ingredients

  • Favorite Cake Recipe Any Flavor
  • Buttercream
  • Food Coloring in Desired Rainbow Colors

Instructions

  • Bake in a smooth round bundt pan. Cool completely.
  • Using a serrated knife, cut away the bottom 1/3 of the cake. The top 2/3 of the cake will be the rainbow.
  • Gently prop the bundt cake up and place onto cake board/plate, using good amounts of buttercream under and around the ends of the rainbow to keep it standing. Let chill for at least an hour till the buttercream is set and the cake is more sturdy.
  • Spread a thin crumb coat of buttercream over the entire cake. Frost the topmost edge of the rainbow in purple buttercream.
  • Place pink, red, orange, yellow, teal, blue and purple buttercream into piping bags fitted with a medium round tip. Pipe the colors over the face of the rainbow from one end to the other in uniform lines, starting with pink, then red, then orange, yellow, teal, blue and purple. Repeat on the other side.
  • Place white buttercream in a piping bag fitted with a large round tip. Pipe buttercream all around the bottom ends of the rainbow cake to make the clouds.
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A rainbow cake and yellow cup Rainbow bundt cake

Photos by Rachel Kivlahan | Recipe by Theresa Rountree

Look at the cute buttercream clouds!!!! GAH! Who’s inviting me to their next unicorn party?

p.s. DIY Rainbow Cheese Board

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ABOUT KELLY

Hi! I'm Kelly! I have a life-long passion for DIYing, memory making and ensuring celebrations aren't just limited to special occasions, and I share all those passions (and more) right here! I live in Los Angeles with my husband, Jeff, and son, Arlo where we're renovating a 1930s house into a colorful place we call home. Thank you for coming along for the ride! Read more...

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  2. Kristina B says

    Aaahhhh I might have to make one or 2 for my grand re-opening!!! Maybe with little cloud cupcakes to go with it! OR SUNS!!! EEEEEE!

    Reply

  4. Ann Kelly says

    I love these bundt cakes! Love making them, they’re so fun, but this takes the – uh – cake. haha!!
    https://soundcloudtomp3.io

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