Easy Rainbow Cookies
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Rainbow Cookies

These easy Rainbow Cookies have gorgeous sky blue frosting on them! These gorgeous rainbow cookies are as delicious as they are beautiful! Easy to make for birthdays and parties, too!
Prep Time15 mins
Cook Time10 mins
Total Time25 mins
Course: Dessert
Servings: 12 cookies



  • Preheat your oven according to your cookie’s recipe’s directions. Line a cookie sheet with parchment paper or a silicone baking mat.
  • Roll out your sugar cookie dough so that it’s about ¼ of an inch thick. Using your circle cookie cutter, cut out 12 circles.
  • Place each cookie on lined cookie sheet and bake according to recipe’s directions.
  • Allow the cookies to cool completely on a wire cooling rack.
  • In a small bowl, beat together butter, icing sugar and milk using an electric mixer. These ingredients will make up your buttercream frosting.
  • Once the ingredients are well-combined, smooth and form semi-stiff peaks, add blue gel food coloring.
  • Mix until it’s completely tinted.
  • Use an offset spatula to frost each cookie.
  • Now, it’s time to create your fondant rainbow. Start with your red fondant and work your way to the violet fondant, in the order listed above.
  • Grab a small portion of your red fondant, and roll out a strip, about 3 inches long. Arch it on top of one of your cookies.
  • Do the same with the rest of your colors, placing it just below its appropriate color. Trim on the sides where you see necessary. Repeat for every cookie.
  • Place 2-3 mini marshmallows at either end of your fondant rainbow. Enjoy!