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Rainbow Funfetti Birthday Cake Oreo Cupcakes

Being out here in Germany has its disadvantages.  As a baker, the lack of access to seasonal and special products that my favorite companies make is a huge disadvantage.  So when Oreo celebrated it’s 100th birthday with special confetti cake flavored Oreos I BEGGED my friends back home to send me some.  Luckily, one fantastic friend (CARRIE!) sent me TWO packages of these special cookies!

When I first opened the bag, I noticed the smell… they were different from the regular Oreos.  Then, I tasted them.  OH EM GEE.  They taste like birthday cake!  Those Oreo people are GENIUS!

So, into my cupcakes these cookies went.  I made a basic vanilla cupcake batter, added a birthday Oreo to the bottom of each cupcake and filled the batter with funfetti rainbow sprinkles.  I then topped the cupcake with a basic vanilla cream cheese buttercream topped with more funfetti rainbow sprinkles and a birthday Oreo!

Simple.  Cute.  Delicious.

Rainbow Funfetti Birthday Cake Oreo Cupcakes

Yield: 12 cupcakes
Prep Time: 15 minutes
Cook Time: 20 minutes
Total Time: 35 minutes

Happy Birthday to Oreo!


Rainbow Funfetti Cupcakes

  • 2 egg whites, room temperature
  • 1/2 cup milk, room temperature
  • 1 tsp vanilla
  • 1 1/2 cups cake flour
  • 3/4 cup sugar
  • 2 tsp baking powder
  • 1/4 tsp salt
  • 1/4 cup rainbow jimmies
  • 6 Tbsp unsalted butter, soft/room temperature
  • 12 birthday Oreo cookies

Rainbow Cream Cheese Buttercream

  • 2oz cream cheese, room temperature
  • 1/2 cup unsalted butter, room temperature
  • 1 lb powdered sugar
  • 1 tsp vanilla
  • 2-4 Tbsp heavy cream
  • pinch of salt
  • Wilton food color, gel - various colors
  • rainbow jimmies


Rainbow Funfetti Cupcakes

  1. Preheat oven to 350 F degrees. Line cupcake pan with liners.
  2. Separate egg whites and whisk together with milk and vanilla. Set aside.
  3. In the bowl of an electric mixer, sift together the flour, sugar, baking powder and salt.
  4. Add the softened butter and half the milk mixture and mix on medium until combined.
  5. Pour in the remaining milk mixture and mix on high until combined, about 10-15 seconds. DO NOT OVER MIX! Scrape the sides of the bowl.
  6. Gently fold in the funfetti jimmies, 4-5 strokes.
  7. Place one Oreo at the bottom of each cupcake liner. Fill the liner 2/3 full with batter.
  8. Bake 20-22 minutes or until a toothpick comes out clean.
  9. Allow to cool in pan for 4-5 minutes before removing to a wire rack to cool completely before frosting.

Rainbow Cream Cheese Buttercream

  1. In the bowl of an electric mixer, cream together the butter and cream cheese.
  2. Add the powdered sugar, 1 cup at a time and mix on high until smooth.
  3. Add the vanilla and salt and mix until combined.
  4. Mix in 2 Tbsp of vanilla. Add more, if necessary, to get your desired consistency.
  5. Beat on high for 4-5 minutes until light and fluffy.
  6. Separate buttercream into 4 small bowls. Add color and mix until combined.

To make rainbow frosting:

  1. Prepare a large piping bag and a star tip.
  2. Spoon in a dollop of each color into the bag, pressing it against the side of the bag to make room for the other colors. Continue layering in the colors into the bag.
  3. Slowly press the frosting out of the star tip. Be careful not to press too hard, you don't want the colors to mix too much and come out brown.

To Assemble:

  1. Pipe a swirl of rainbow frosting on top of each cooled cupcake.
  2. Garnish with rainbow jimmies and half a birthday Oreo.

Did you make this recipe?

Please leave a comment on the blog or share a photo on Instagram

PS… I was in a hurry and didn’t bring my eggs and milk to room temperature and didn’t bake them quite long enough, so my cupcakes didn’t rise like I wanted them to.  :( Bummer.  Make sure yours are room temperature and be patient!!


Wednesday 27th of June 2012

I found your post googling birthday cake Oreos, hoping to find them in Switzerland. No luck. :( The cupcakes look delicious, can you buy sprinkles in Germany?


Sunday 1st of July 2012

There are a few sprinkles in the baking isle in the German stores.... not too many though. I order a lot from the USA on ETSY or Bake It Pretty. :)

Cupcake and Talk

Tuesday 20th of March 2012

What a fun cupcake! I love the rainbow colors. I am happy you found a good friend to send you some Oreo Cookies. Thank you for the rainbow frosting technique.


Monday 19th of March 2012

I know how you feel! After 15 years living various places abroad I've missed out on a lot of stuff. I don't think I've had a girl scout cookie in 10 years :(


Monday 19th of March 2012

These look delicious. Love that you call them rainbow jimmies =)

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