This Easy Rainbow Cake will make you extra happy because it starts with a boxed cake mix. This rainbow layer cake is pure joy! It’s vibrant inside with colors of the rainbow and luscious outside with cream cheese frosting.
EASY RAINBOW CAKE
Ryder asked for a Rainbow Cake for his last two birthdays. Honestly, I didn’t want to take the time to make it.
Initially, I said no but reconsidered and surprised him. Making it as easy as I could, I started with cake mix. This is how I did it.
After mixing the batter, you will need to divide it into bowls to add the food color. (You can make as many different layers as you want. I have made this cake from four colors to seven colors.)
I used a cake mix for the cake. And, instead of regular food coloring, I used food coloring by Wilton that’s designed to go in cake icing. These icing colors gave the layers intense colors that didn’t fade with baking.
Use a white cake mix and only use the whites of the eggs or the yolk will alter the color.
ADDING THE COLOR
To add this gel icing coloring, I use the end of a clean knife and dip it in only once.
You’ll need to separate the cake batter into 4 (or however many different colors you’re using) small bowls of equal portions.
Run that knife through the batter, then mix together with a spoon.
Wash knife or use a new one each time in order to not contaminate the colors.
I used four 8 inch cake pans for the layers: yellow, orange, red, and purple.
Previously, I baked cakes and sold them to the public, so I have plenty of cake pans. If you don’t have four pans, bake them in different batches. These layers only took 12 to 15 minutes to bake.
It doesn’t take much of the coloring, less than 1/8 tsp, for the results I got.
Red (it’s more hot pink) – it doesn’t show well in photos.
and the blue layer!
After the layers cooled, I frosted them with Cream Cheese frosting.
Are you ready for this beautiful cake?
If you like to bake and decorate yummy cakes, try these recipes too!
- Easy Key Lime Cake
- Peppermint Candy Three Layer Cake
- Easy Strawberry Cake
- Lemon Layer Cake
- Toffee Banana Layer Cake
- Red Velvet Layer Cake
- Gingerbread Layer Cake
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Easy Rainbow Cake
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- 15.25 oz box white cake mix
- 4 large egg whites Do not use yolks, his will alter the color when adding food coloring.
- 1 and ¼ cups water
- ⅓ cup canola oil
- Wilton icing color
- Mix cake according to package directions.
- Mix icing color into cake batter until the desired color is reached. (Color will darken while baking.)
- Bake 12 to 15 minutes or until cake is set in the center.
- Cool completely before frosting with Cream Cheese Frosting.
You can also find great recipes at my recipe index or at Meal Plan Monday
I love this rainbow cake!! It’s so fun! Thanks for linking it up to Saturday Dishes. We love that you come visit still!
Jessica Smith says
Wow you’re right that does look easy! Super cool cake.. Pinned 🙂
Thank you, Jessica, and thanks for sharing. It was easy and oh so good!
Diana Rambles says
Randi Sowders says
I made a rainbow cake for my daughter’s 5th birthday this year too! They are so much fun!
I hope you join up our linkup party!
You know, I’m really glad I did the cake for him and it really wasn’t as much ‘trouble’ as I thought.
Amber @ Dessert Now, Dinner Later! says
So cute! I love the bright colors! Thanks for sharing at Sweet & Savory Saturdays #17.
~Amber @ Dessert Now, Dinner Later!
How pretty! Can you believe I have never made anything more than a two layer cake?
I got really quick at making them when I made them for a restaurant, but am really out of practice now. They make a pretty presentation, but I usually like to do a sheet cake.
Are you coming to MS this summer?
Jen B says
Wow I love this!! What a great idea! Looks fantastic! 🙂
Thanks so much! It was really good, I think I ate the majority of it 🙂
Oh Paula, this looks like so much fun! I’m such a fan of bright colors. I would even want my own birthday cake to look like that!! So. FUN! Thanks for the idea and posting on Sweet and Savory Saturdays.
Andi @ The Weary Chef says
Oh wow, Paula, that looks AWESOME! I have never made a rainbow cake either because I’m way too lazy for that. You make it look so easy that maybe I’ll give it a try. Beautiful job!
Nancy P.@thebittersideofsweet says
We absolutely love all things rainbow around our house! Such a cute cake!!
I love this and pinned!