Watermelon Fault Line Cake Tutorial

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Today I'm going to show you how to create a CUTE and simple Watermelon Fault Line Cake in buttercream!I love the fault line cake trend because there are so many fun & unique design possibilities!

We recently created a Sprinkle Fault Line Cake tutorial, and we're happy to bring you another fun design with today's watermelon version! 

Watermelon Fault Line Cake- Free Video Tutorial

Why We Love It

There are so many reasons to love this buttercream fault line cake design! Here are just a few!

  • Easy, no carving involved!
  • Versatile- We love this watermelon theme for summer, but the design options are endless!
  • All buttercream! We love any chance to create an all-buttercream cake design. 
  • This watermelon fault line cake is perfect for summer birthday parties, picnics, and more! Don't miss our full collection of favorite summer cakes!

 How to make a Fault Line Cake

Fault Line Cakes are so interesting and unique, and easier than you think to create!  

  • The basic idea for fault line cakes is to first crumb coat your cake, adding a thin layer of colors or sprinkles, etc. (often around the center of the cake but not always) wherever your "fault line" will be.

 

  • Next, build out the frosting around the fault line with a thick layer of frosting. This really brings this unique design together, giving it wonderful dimension. I find it easiest to pipe on the buttercream using a disposable piping bag with the tip snipped away. Then smooth with a bench scraper.

I love the look! We hope you'll give our watermelon cake a try. It would be perfect for summer gatherings!

Watermelon Fault Line Cake

More Summer Cake Design Ideas

This watermelon cake is great for summer! We've made many summer-themed cakes over the years. Here are a few of our favorite free cake tutorials!

 

Sharing the BEST Summer Cake Recipes, Tutorials, and Design Ideas

Favorite Summertime Cake Recipes

We also have a collection of our favorite cake recipes for summer! Whether you're looking for lemon cakes, strawberry cakes, cocktail-inspired cakes like Piña Colada Cake or Margarita Cake, we have so many fun and fruity cake flavors to share. Hop on over to see: The Best Summer Cake Recipes

 

A collection of the best cake recipes for spring and summer!
 
 
 


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Enjoy the Tutorial!

Thanks so much for stopping by today! We hope that you will give buttercream fault line cakes a try. If you do, please leave a comment and photo below! We would love to see your work. 

Watermelon Fault Line Cake- Free Cake Decorating Video Tutorial

Watermelon Fault Line Cake- Free Cake Decorating Video Tutorial

Learn how to make a CUTE and trendy fault line cake with a watermelon theme in this free cake decorating video tutorial! Perfect for summer entertaining!

Materials

  • *We are decorating a double barrel cake in this video-- four 6-inch cake layers with supports in the bottom half, and a small cake cardboard halfway up.
  • Buttercream Frosting: We used our Fluffy Vanilla Buttercream. Our Classic Vanilla Buttercream is a good choice also. (A frosting that contains butter is my preference for fault line cakes).
  • Coloring Gels: I used Wilton Leaf Green mixed with a little Avocado Green for the dark green shade. I used Americolor Electric Green for the light green. (Use whatever shades of light and dark green you like.) . I used Americolor Red Red and Americolor Super Black also.
  • Bench Scraper and/or small offset spatula
  • Turntable- Optional, but helpful
  • Disposable Piping Bags

Instructions

  • After filling and assembling your cake, apply a thin crumb coat. Then, apply a thin red layer of frosting around the middle of the cake. Chill for about 15 minutes to firm up.
  • Load your dark green and light green shades of buttercream to piping bags and snip the ends away.
  • Apply alternating stripes of dark and light green on either side of the red frosting. I applied my stripes two layers deep so that it was thick.
  • Smooth over the green striped frosting with a bench scraper. Chill for about 15 minutes or just until frosting is firm. Then go over again with a hot spatula or bench scraper, filling in any low points with more frosting. Frost the top of the cake green.
  • Pipe on the seeds with a small round tip (tip 3 or 4)
  • Notes

    You'll notice in the video that I chill my cake whenever I want to firm up the frosting. Firming up the frosting makes imperfections easier to correct, and whenever I use a hot spatula for smoothing, I like to apply it to chilled frosting. I also chill my cake in the freezer for about 15 minutes (or until firm) before moving it to the cake pedestal.

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