How to make rainbow cake in a jar; Cake in a jar is fun and easy! Learn how to make rainbow cake.
Why exactly would you want a rainbow colored cake? Well, let me tell you.
a) You’re celebrating St. Patrick’s Day in a cute way.
b) You want something bright and colorful for a birthday party.
c) You’re like my daughter, and you change your mind about what your favorite color is every day.
And why would you want this cake in a jar?
a) It’s cute.
b) You’re kids are constantly fighting over portion sizes.
c) It’ll look amazing on Pinterest.
Cuz I know you are super concerned about how they look on Pinterest. Or is that just me?
I’ve actually blogged these before. But since my photography, writing, and cake-coloring skills have improved so much, I figured it was time for a re-do.
Or is it re-doux?
Let’s talk about cake-coloring skills for a moment, shall we?
The first time I made this recipe, I used the liquid food color drops that you get at the grocery store. I wasn’t thrilled with the results. That stuff is great for lightly colored frosting, but not so much for brightly colored cake.
I really have a thing for not going to specialty stores, though, so if you want to use the regular drops, knock yourself out. Just know they will be more pastel, and not bright or bold.
Today I used gel food color from AmeriColor . This stuff works great, I promise you’ll love it. And if you aren’t near a restaurant supply store, then it might be a good candidate for online purchase.
Once you get your colors all mixed up, just drop spoonfuls into the jars, a little blob here, a little blob there. They really don’t have too look too perfect, because the batter expands as it bakes. The jars should be half full or less before baking. Follow the instructions, and bake them in a water bath.
Your St. Patricks / Birthday / Rainbow party is going to be such a huge success!
Rainbow Cake in a Jar
Rainbow colored white cake baked in canning jars with white frosting.
- 1 white cake, prepared but not baked (I used a box mix.)
- gel food coloring, 5 different colors
- 1 can prepared frosting
- sprinkles, optional
Split prepared cake batter into 5 separate parts, each in a small bowl or cup.
Put a small amount of food coloring into each part, stirring to achieve a bold color.
Carefully drop a spoonful of each color batter into each of 6 half pint canning jars.
Place jars in a 9x13 pan, with ¼" water in the bottom. Bake at 350F for 35-40 minutes.
Once cakes have cooled, frost the tops and decorate with sprinkles.