Learn To Make Rainbow Swirl Cookies

There’s a new tutorial in the Cookie Art Club! Learn how to make awesome rainbow swirl cookies with rainbow cookie dough! I outlined these in white royal icing to make them pop.

The baby of our family is turning 5 this month so I made these fun rainbow flowers and number 5 cookies to celebrate her birthday.

A number 5 cookie made of swirled rainbow cookie dough and outlined with white royal icing. The number 5 cookie is surrounded by flower shaped cookie with the same rainbow design and white outlines.

You can watch this members-only video tutorial (without ads!) when you join my Cookie Art Club!

Get access to exclusive cookie decorating tutorials, my cookie and royal icing recipes, and individualized cookie decorating advice by joining my Cookie Art Club!

This post contains affiliate links. Read my affiliate disclosure here.

flower shaped cookies made from swirled rainbow cookie dough with white icing outlines.

I had some leftover rainbow cookie dough from these Grand Prismatic Spring inspired cookies and I decided to create a swirly psychedelic design with the dough.

The technique is similar to making polymer clay beads where you roll the clay into a log and slice it to reveal the design inside (anyone know the name of this technique?? I couldn't find it anywhere!).

Sliced rainbow cookies revealing a cross section of layered rainbow cookie dough with blue gelatin in the center

Here's what you'll need to make rainbow swirl cookies

These supplies are available in my Amazon store unless otherwise noted

  • 1 batch of cookie dough (use any of my cut-out cookie recipes)
  • Number cookie cutter from Disco Numbers 2 from Cakes By Ximena
  • Flower cookie cutter
  • Medium consistency royal icing 
  • Super Red, Sunset Orange, Lemon Yellow, Leaf Green, Sky Blue, and Violet food coloring (I used Chefmaster brand food coloring)
  • Small rolling pin
  • Spray bottle with water (you can also use a brush or your finger to apply the water)
  • Thread for slicing
  • 1 12” Decorating bags
  • Decorating tip 2 (I used Wilton brand)
  • Coupler & Bag tie (I used Wilton brand)
A number 5 cookie made of swirled rainbow cookie dough and outlined with white royal icing. The number 5 cookie is surrounded by flower shaped cookie with the same rainbow design and white outlines.

Want to make these cookies yourself? The video tutorial and recipes to recreate these cookies are available to Cookie Art Club members and you can try it free for 7 days.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.