There is something so special about a rainbow – the bright colors fill the sky after rain falls. So why not bring that beauty into these Rainbow Party Cupcakes? Red, Orange, Yellow, Green, Blue and Purple frosted cupcakes are decorated with different techniques. 

I LOVE these Rainbow Party Cupcakes! Use different techinigues to decorate each of the cupcakes with Red, Orange, Yellow, Green, Blue and Purple! Perfect for St. Patrick's Day Cupcakes or Birthday Party!

These make me smile! They are perfect for St. Patrick’s Day or even a fun birthday celebration! Last year I shared Mini Rainbow Cupcakes and I’ve also created Rainbow Cupcakes in a Jar, but this time I decided to keep it easy and impressive looking at the same time…you know I love that!

I’m so excited you are here! Looking for a cupcake recipe?  Be sure to check out the Cupcake Heaven page, there are over 300 cupcake recipes and decorating ideas!

Rainbow Cupcakes

Your favorite cupcake flavor will do just fine, I baked white cupcakes using a cake mix and adding ingredients to make them taste homemade. Then I whipped up a batch of Buttercream Frosting, divided into 6 different bowls and added the colors of the Rainbow.

Cupcakes with Purple Frosting

Helpful Supplies


First are the Purple Cupcakes

  • TipStar #1M
  • Technique – Rose
  • ColorWilton Voilet
  • Instructions – begin in the middle of the cupcake and pipe the frosting around, this is opposite of the normal swirl, but it creates the rose effect

Cupcakes with Blue Frosting

Next are the Blue Cupcakes

  • Toolsmall offset spatula
  • Sprinkles – mini blue nonpareils
  • ColorWilton Royal Blue
  • Instructions – place a large spoonful of frosting in the middle of the cupcake, using the offset spatula push the frosting to the edge, swirl it a bit and finish with a small indentation in the center. Add the nonpareils

Cupcake with Green Frosting

And then the Green Cupcakes

  • TipRound #12
  • Technique – simple swirl
  • ColorWilton Kelly Green
  • Instructions – start on the outside of the cupcake and swirl the frosting, ending in the center with a peak

Cupcakes with Yellow Frosting

Up next are the Yellow Cupcakes

  • Tool – small offset spatula
  • DecorationMini melt away mints and Chocolate Jimmies
  • ColorWilton Lemon Yellow
  • Instructions – Frost the cupcake completely, then to smooth, run the offset spatula under hot water, shake off excess and smooth frosting. Add yellow mints to form a flower and sprinkles in the center

Cupcakes with Orange Frositng

Now for the Orange Cupcakes…

  • TipRound #1A or giant
  • SprinklesOrange Jimmies
  • ColorWilton Orange
  • Instructions – pipe a large amount of frosting in the center of the cupcake, pushing down slightly so the frosting reaches the edge of the cupcake, pull up to create the peak. Add orange sprinkles

Cupcakes with Red Frosting

And last, but not least the Red Cupcakes

  • TipStar #21
  • Sprinkles – Red sanding sugar
  • ColorWilton No-Taste Red {no taste is important because red can be bitter}
  • Instructions – Pipe on frosting in a swirl starting on the outside and finishing in the center. Sprinkle with red sanding sugar

Decorated Rainbow Cupcakes


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