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How to Make a Groovy 70s-Inspired Shag Cake

Create this mesmerizing design with just a grass piping tip (and a little practice).

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So Shaggy

Just like the retro rugs, this groovy cake is decked out in shaggy swirls of psychedelic colors. Follow these simple steps to build your own. It might take some practice, once you get into a groove (ha!) with the piping, you'll be well on your way to nailing this design.

Alana Jones-Mann is the creator of this incredible technique — we're thrilled to have her share her expertise here. Follow her on Instagram to see more of her inspired cakes.

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Here's What You'll Need


  • Four 6-inch cake rounds, cooled (any recipe you like)
  • Vanilla buttercream frosting (use the large batch recipe here or 4 store-bought cans)
  • 6 cups (12 sticks) unsalted butter, softened
  • 2 pounds (1 bag) confectioners' sugar
  • 2 tablespoons heavy cream
  • 1 tablespoon vanilla extract
  • 1/2 teaspoon table salt
  • Food coloring palette of your choice (We chose golden yellow, orange, mint green and avocado hues for truly 70s-inspired palette.)


  • Serrated knife
  • Offset spatula
  • Plastic piping bags (and rubber bands to close them)
  • 4 x Decorating couplers
  • 4 x Grass decorating tips
  • Optional: Flat decorating tip

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Bake the Cake

Follow your recipes instructions, but here's how we baked off a standard vanilla cake: Preheat the oven to 350 degrees F. Line four 6-inch cake pans with parchment paper and coat with cooking spray. Prepare your choice of cake mix as directed; divide the batter between the pans and bake 25 to 30 minutes. Allow the cakes to completely cool before you begin decorating.

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Prepare the Buttercream Frosting

While the cakes are baking, make one large batch of buttercream frosting. Beat the butter for a few minutes on medium speed, preferably using a stand mixer with the paddle attachment. On slow speed, gradually add the confectioners' sugar 1 to 2 cups at a time, allowing each batch of sugar to incorporate with the butter before adding the next. Increase the speed to medium and add the vanilla, cream and salt. Beat for an additional 3 minutes.

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