My youngest daughter, affectionately known online as Cupcake, turned 1 last week. It’s beyond me how she is growing so fast and the whole baby stage is slowly coming to a close and will be behind me long before I’m ready for it to be over. What fun would a birthday be without some cake? I wanted Cupcake to dig into her own birthday treat but wanted to save myself the work of baking two cakes, so I figured my best bet would be cupcakes.
A cupcake for my little cupcake!
Since it was just a small family celebration, we didn’t do a big themed party with tons of decorations to celebrate. Since I didn’t have any theme to help inspire me, I tried thinking up all of the fun cupcake ideas I could using a boxed cake mix. At last, inspired by the rainbow layer cake I made for my own birthday, I settled on making rainbow cupcakes with buttercream frosting.
While the rainbow layer cake was a labor of love, these rainbow cupcakes weren’t nearly as labor intensive. Once again by making cupcakes from cake mix this saved me extra time, which I am always in short supply of. Another fun thing about these cupcakes is that while I layered the different colors of cake batter, there was nothing to keep them separated so the result is almost tie dye effect for something totally out of the ordinary!
Rainbow Cupcakes with Buttercream Frosting
Ingredients For Cake:
1 box white cake mix (I used Betty Crocker)
3 eggs
1/3 c. canola or vegetable oil
1.25 c. water
Ingredients for Buttercream Frosting
1 c. unsalted butter (2 sticks), room temperature
4 Tbsp. milk
4 tsp. clear vanilla extract
4 c. powdered sugar
If you plan on spreading your frosting instead of piping it on, you can half this recipe. The cupcakes in the pictures have a healthy amount of frosting on them.
Directions
- Preheat oven to 350 degrees, then lightly spray or line cupcake pans and set aside.
- Mix cake mix, oil, water, and eggs together with electric mixer for approximately 2 minutes.
- As best as you can, try to evenly divide the batter amongst six, small bowls.
- Using a toothpick, use small amounts of Wilton gel food coloring at a time until you achieve your desired color.
- This is the tricky part. Once all batters are colored to your liking, begin evenly distributing your batter among the prepared cupcake pans.
- Continue dividing the batter in the order you want your rainbow to appear.
- Bake for 15-18 minutes and allow to cool completely.
- While cupcakes are cooling, prepare the frosting by mixing all ingredients together using an electric mixer.
- Frost your cupcakes as desired and served. I used a Wilton 5 tip on the cupcakes in the front of the picture and a Wilton 1M tip on the back cupcakes.
Yields: 18 cupcakes
If you liked the idea of the rainbow layer cake but thought it might be a little too intimidating, I encourage you to give this recipe a try. It’s unique, fun, and still leaves a lasting impression without taking hours in the kitchen to make. These rainbow cupcakes are perfect for birthdays or even your St. Patrick’s Day celebration.




Very cute and colorful! I bet the kids love them!
Those looks so Good!!
they are beautiful!
I love the vibrant colors! What a great cupcake!
How fun! Definitely will try these for my stepdaughter’s birthday!
so bright & colorful!
Very cute! My kids would love these!
Happy Birthday to Cupcake! These turned out so pretty and vibrant–what a great idea!
this is awesome!! great job.
I just added this to my favorites!! These look so fun!
1 already! Happy birthday to her. These are so pretty and fun!
omg! that looks so delicious!
best wishes to her
I’ve made rainbow cupcakes before. They are so much and always a big hit
Happy birthday, little one!! Very cute! And they look delicious
so cute!!
These look awesome!
So colorful and fun! Thanks for sharing on Inspire Me Wednesday!
So cute!
These are adorable, I love the bright colors
Happy Birthday! These are so pretty and look delicious!
This looks beautiful, I love it! My son would have a blast making this with me, and it looks so yummy too!
This cupcake looks awesome. I would love to taste it.
Those are so pretty!
I love how bright these are too!! wow!!
trisha
I made these for my daughters first birthday too
Super fun and easy.
I’ve always wanted to do rainbow cupcakes or cake. These look so good!
OMG that looks so cool! I love how you got all of those colors in there. I bet kids would go crazy for them.
Those are almost too beautiful to eat! They turned out perfect!
YUMMY! We’ve done these before and of course, it’s a big hit
Yum! these look delicious and fun!!
ohhhh so pretty and so fun looking!
These look fab!! Must try them with my daughter one day!
Noah keeps talking about making cupcakes using all the colors. This would be perfect to try. I told him they would be black lol.
I love how pretty and bright the colors are. so neat