Rainbow Birthday Cake

Making a rainbow birthday cake doesn't have to be complicated. Here's my step-by-step tutorial on how to successfully make a rainbow birthday cake. #womenlivingwell #rainbow #birthday #cake

Look what Janelle from Comfy in the Kitchen made for her daughter’s 4th birthday!

Making a rainbow birthday cake doesn't have to be complicated. Here's my step-by-step tutorial on how to successfully make a rainbow birthday cake. #womenlivingwell #rainbow #birthday #cake

Janelle is here today to share with us how she made her Rainbow Birthday Cake – she writes:

My “Baby” had her 4th birthday party with some of her little friends. When I asked what she would like her theme to be…she yelled “RAINBOW!” Ok girlie…rainbow it is :) I’m not the most “creative” genius there is {remember, I am “comfy” NOT “creative”)…but I have a willing heart, so I scoured Pinterest for some inspiration.

I truly enjoyed making this special cake for her and thought to share with you. It was a “piece of cake” hehe! For those of you intimidated of making double layer cakes– please don’t be. Again…I am not a baker- just a normal gal. If I can do it, so can you!

There IS something special about a homemade birthday cake, isn’t there? This was one very special cake indeed. The kids LOVED the outside of the cake- then I told them there was a surprise on the inside too…you should have seen their faces. Adorable.

The ingredients: 2 WHITE cake mixes, 2 fluffy white tubs of frosting, 2 cake pans {with liners}, gel food coloring {this stuff is vibrant!}, skittles and marshmallows.

Make cakes separately in two bowls. This will insure them being even with one another. Follow package instructions.

Gather up 3 bowls. For the first cake I went in rainbow order. There will be 3 cups of batter per cake. Put 1 cup of batter in each bowl- red, orange and yellow. You will have to mix the red and yellow to make orange. There is no special amount I used- I just squirted in there like so.

Stir well. Do this again with blue, green and purple {mixing the red and blue together}.

Making a rainbow birthday cake doesn't have to be complicated. Here's my step-by-step tutorial on how to successfully make a rainbow birthday cake. #womenlivingwell #rainbow #birthday #cake

Line your cake pans with wax paper liner, spray with Pam {or butter}, then pour the red in, on top of that pour the orange then the yellow. It will flatten out like so.

Making a rainbow birthday cake doesn't have to be complicated. Here's my step-by-step tutorial on how to successfully make a rainbow birthday cake. #womenlivingwell #rainbow #birthday #cake

Pretty neat!

Bake 30 mins in a 350 oven.

Cool on wire rack until completely cool- if your cakes are still warm, they may crack during this next step!

Frost in the middle then place the other cake on top and frost all over.

Use Skittles to make a rainbow and to decorate the sides. Use marshmallows for clouds. This was SO easy- and {I thought} it was super adorable.

I found some cute candles at the grocery store- yea! I didn’t have to draw anything on the cake, lol!

Happy Birthday Munchkin!!!!!

Surprise inside! Woohoo! Oh and yes…. that is “superman” ice cream. I just could not resist.

Making a rainbow birthday cake doesn't have to be complicated. Here's my step-by-step tutorial on how to successfully make a rainbow birthday cake. #womenlivingwell #rainbow #birthday #cake

One FUN cake!!! I would make this again in a heartbeat…just adorable!!!!

I had a lot of fun decorating the house for her party.

But again, you aren’t going to see anything fancy with me…. that isn’t my strength. I think us ladies can sometimes get overwhelmed with all of the talent out there on Pinterest {esp with party planning}. For those ladies who are super talented- that is awesome! But for those of us who have different talents, we shouldn’t be intimidated :) If we have a heart for opening up our homes -that is the most important thing. No one comes to see your home anyways {unless its up for sale!}, they come to see the people.

Another thing I don’t get all excited about? Messes. I popped up a table in the garage and we had some good old fashioned kid fun. That garage was covered in glue and fruit loops by the end of the night ….Oh well?! The kids had fun! It can all be cleaned up. Let ’em be kids. :)

Rainbow Birthday Cake
Serves: 20
  • 2 white boxed cakes {with ingredients on package directions}
  • Food coloring gel
  • 2 jars fluffy white frosting
  • 1 large bag skittles
  • 2 handfuls of marshmallows
  • 2 cake pans
  • waxed paper liner and Pam spray
  1. Make cakes in 2 separate bowls according to package instructions.
  2. you will need 6 bowls with 1 cup of cake batter per bowl. Make your desired colors. I made cake #1 with red, orange and yellow. Cake #2 with blue, green and purple.
  3. Trace the outside of your cake pan onto waxed paper liner and cut to fit your cake pan. Place liner in cake pan and spray with Pam or butter. These cakes will not stick!!!
  4. Pour each color of batter on top of one another like picture above.
  5. Bake in a 350 oven for 30 mins or until center is baked through.
  6. Take pans out of the oven and set directly on a wire rack.
  7. When completely cool turn over first cake.
  8. Frost top. Then turn second cake on top of first cake.
  9. Frost the top and sides.
  10. Make a rainbow pattern using Skittles. Place Skittles along the edge and finish with marshmallow clouds.


This is such a fun cake inside and out! Thank you, Janelle, for sharing this with us!

Walk with the King,

*Janelle is a woman who is dependent upon Jesus, a mom, a Licensed Professional Counselor, and an advocate for meal ministry. You can find her displaying step-by-step photos of her recipes, giving devotionals, and sharing meal ministry stories on her blog. You can follow Janelle’s blog at ComfyInTheKitchen.com. You can follow Janelle’s blog at ComfyInTheKitchen.com


  1. What a great birthday theme! I love all the color and cheerfulness.
    On another note, what is paint color of your? The wall behind your “family” sign. I absolutely love the color.

  2. I love this cake idea and so easy too, thanks for sharing. Love the comment too , “No one comes to see your home anyways {unless its up for sale!}, they come to see the people.” I think folks get caught up in worrying about what people will think of their home, it holds them back from being hospitable. Great take away 🙂

  3. This cake would be so neat for a Bible study on Covenant! My mother-in-love is leading a Precept study on Covenant I am blessed to attend. We could have done this earlier in the study :). Would also be good if teaching it to children in homeschool. Thanks for sharing Courtney & Janelle! 🙂

  4. Aawww.. This is so adorable! *ALMOST tearing up*.. She must have loved this, and will live to remember.. I love doing special things for the people I love & most definitely can’t wait to have kids of my own to do such unusual things for.. Thank for the recipe!
    Much love WLW!

  5. Awww, thank you Ladies 🙂 My paint color is called Naturalist Stone from Dutch Boy. I absolutely love it- it’s not too gray and not too brown! Don’t ask me how many colors it took to get to this one {4, lol}.

  6. The cake is super cute, but what I love most is that you held her party simply and at home. When my daughter was little no one really had parties sat home, and if they did it was always with a mildly apologetic air to the other parents, I guess because they weren’t going to ‘Chuckie Cheese’ or Esmerelda’s Fairy Garden (for tea parties) or Miniature Golf.

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