How to Decorate a Square Cake

Updated February 21, 2017

Learn how to turn an ordinary square cake into edible art. Choose a simple decorating style or pipe multiple shapes, sizes and colours for an elaborate square cake. Make an odd number of square cakes, each smaller than the previous and stack them to make tower cakes. Add fresh fruit or fresh flowers on each corner and drizzle chocolate over the tower for an elegant, yet simple square cake.

Frost the cake completely.

Hold one spatula at the corner of the cake so the spatula creates a barrier on the side of the cake.

Smooth the frosting on the other side of the cake, using the first spatula as a barrier to create a crisp corner on the cake.

Gently glide the first spatula all the way down the length of the cake to smooth the frosting and minimise the marks made by the spatula.

Repeat this process on all the corners. You can also use it to create a clean edge on the top of the cake.

Fill a piping bag about 1/3 full of frosting. If you don't have bag, use a plastic storage bag. Cut the corner so a cake decorating tip fits about half way through the hole and put the frosting in the bag.

Screw the decorative tip onto the frosting bag.

Squeeze gently, using an even and steady amount of pressure to dispense the frosting.

Pipe a border in a square shape about 1/2 inch from the edge of the cake. Use a colour contrasting with the colour of the frosting.

Pipe the same colour border along the base of the square cake.


Experiment with various colours and decorative tips to find combinations you like and perfect the various shapes and designs. Cover the cake with coconut for an elegant and easy way to decorate a square cake.

Things You'll Need

  • Square cake
  • Frosting
  • 2 thin spatulas
  • Piping bag
  • Cake decorating tips
  • Fresh fruit
  • Fresh flowers
  • Chocolate
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About the Author

Angela Roe is a freelance writer who specializes in writing online articles, including topics as diverse as home improvement and decor, crafts, ballroom dancing, sports, fitness and business interests, as well as marketing and research, and business associations. She also provides SEO copy to industry-leading Web-content providers.