St. Patrick’s Day Rainbow Cupcakes

I honestly don’t think I am capable of letting a holiday go by without making cupcakes. When I was a kid, on St. Patrick’s Day my family didn’t do much to celebrate, not anything really – aside from avoiding getting pinched at school. When my kids were little, I always did the corned beef and cabbage for dinner, but it wasn’t until I had grandchildren that I really got the spirit of the holiday. Who knew Leprechauns could be so much fun? The mischievous little fellows get into all sorts of trouble on St. Patrick’s Day doing things like turning our favorite foods green and making messes everywhere they go.

St. Patrick's Day Rainbow Cupcakes

These St. Patrick’s Day Rainbow Cupcakes are certainly not original. I can’t remember where I first saw them, but when I cam across some rainbow striped Sour Power candy strips at Dollar General the other day, I knew it was a sign that these cupcakes just had to be made. I believe that the AirHeads brand makes a similar rainbow striped candy.

St. Patrick’s Day Rainbow Cupcakes

ingredients and supplies:

a batch of your favorite cupcakes
1 recipe Buttercream Frosting, tinted green with food coloring
miniature marshmallows
gold sprinkles
Sour Power or AirHeads rainbow candy strips
pastry bag fitted with a grass tip (Ateco #133 or Wilton #233), optional

Rainbow Cupcakes for St. Patrick's Day


1. Bake cupcakes according to package directions. Meanwhile, prepare buttercream frosting and tint with green food coloring.

2. Spread frosting over cooled cupcakes. Optionally, pipe grass onto the top of each cupcake.

3. Cut about 1 to 1/2 inches from each rainbow strip – otherwise they will be a little too long. This also provides a great snack while you are making the cupcakes. Press each end of the rainbow into the top of the cupcake, as pictured. Gently press a few miniature marshmallows into the frosting around the ends of the rainbow, to form the clouds. Sprinkle on the gold.

Tip: I recommend adding the rainbows no more than 2 hours before serving, or they may begin to droop and loose their shape.

How does your family celebrate St. Patrick’s Day?

Print Friendly


  1. saminder gumer says

    love the colors and decorations on these cupcakes. they look amazing and i bet they taste just as good as they look.

  2. says

    These St. Patrick’s Day Rainbow Cupcakes are fantastic. It looks so adorable you don’t want to eat and then when you really look at it and see how delicious it looks – you can’t keep you hand from reaching over and taking one. Thank you very much for this great recipe.

  3. says

    I really love these cup cakes and I have never saw those types of candy before to use for the rainbows. I’ll be checking out the store next to me and see if I can find some to make some of my own cupcakes. Thanks for sharing.

  4. Janet W. says

    These are the cutest cupcakes! They are so cute that I wouldn’t want to eat it and mess it up! My grandsons would absolutely love to eat these.

  5. M.Clark says

    Wow!! These cupcakes look amazing, what a wonderful St. Patrick’s Day treat. Thank you for sharing this recipe.

  6. Sarah Elyce says

    These cupcakes are adorable! I may have to make them for St. Patrick’s Day and send them to my boyfriend’s office. They love getting surprise cupcakes!

  7. tiffany f says

    These cupcakes are super cute. I am not very good at icing and decorating food so not too sure I would be able to pull them off and make them look even close to the pictures here, lol. They are almost to pretty to eat but bet they taste delicious !!

  8. says

    These would be perfect for school on St. Patrick’s Day. I actually have everything to do these with except the Sour Power or AirHeads rainbow candy strips. I even have a bag of mini marshmallows that I didn’t use left over from a fruit salad I made with cool whip. I just have to pin this cute St Patrick’s day cupcake. Thanks for sharing it. Your so clever.

  9. says

    Love, love this! Super Sweet and creative! We are gearing up in green for St. Patrick’s day and celebrating it with a sweet shamrock shake! I would love for you to stop over and check out my shamrock shake recipe! :-)

  10. says

    Oh, my gosh! These are the most adorable cupcakes EVER! Please come share your blog posts over at the Home Matters Linky Party! We’d love to have you for a visit. The Door OPENS Friday. :)

    Life With Lorelai

  11. Denise Osborn says

    These cupcakes are so cute and sweet. I would really like to make them for my granddaughters school class. St. Patrick’s Day is lots of fun for our Irish family

Leave a Reply

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

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>