Rainbow Cake in Jar 1 box white cake mix made according to package instructions Neon food coloring in pink, yellow, green, turquoise, and purple 3 one-pint canning jars 1 can vanilla frosting Rainbow sprinkles Preheat oven to 350 degrees. Thoroughly wash and dry the inside of each canning jar. Spray the inside of each jar thoroughly with nonstick cooking spray. Set aside. Scoop about 1/2 cups of cake batter into five small bowls. It doesn’t have to be perfect, don’t panic if you get a little more of less of one color than another. Tint each bowl of cake batter with the food coloring until very vibrant. Spoon about 3 tablespoons of the purple batter into the bottom of each jar. Spoon equal amounts of turquoise batter, then green, yellow, and pink. Place the jars in a shallow baking dish, add about 1/4″ in water in the baking dish. Place the baking dish in the oven and bake for 30-35 minutes. Remove jars and allow to cool completely before scooping a small portion from the top of your cake and adding a hefty dollop of vanilla buttercream to the top. Sprinkle & serve, or cover with a lid and store in the fridge or pop into the mail & surprise someone you love! POST EDIT: Several commenters have indicated that the cake is not cooking all the way through in the 30-35 minutes indicated in the recipe. This was enough time for our cake, but I’m cooking at high altitudes, and my oven tends to bake hot. So, I’d recommend baking the cake for 40 minutes, then return it to the oven if it still doesn’t spring back to the touch when you check to see if it’s finished. As for the cake puffing up and out of it’s bottle, ours did that a bit, as well. Easy fix. We just scooped a bit of the cake out to make room for the frosting and wiped the outside of our jars clean. Several people have indicated that the wide-mouthed mason jars work a little better for this purpose. I’ve not yet baked with wide-mouthed. What you see above is what was baked in my kitchen according to the recipe instructions, and what came out of the oven when it was all. Of course, if you’re feeling wildly impatient, you can also zap the cake in the microwave for 2 minutes. It’s going to bubble up, for sure, but you can scoop the top part of that cake out, frost it, and no one will ever be the wiser. Good luck, everyone! This is such a fun cake. My kids went nuts over it, and I hope it works as beautifully for you as it did for us! For even more great desserts in a jar, check out our slideshow “Contain Yourself! 15 beyond-exciting desserts in a jar!” 143 stumble! google +1 Related Posts : Red Velvet & Nutella Cake in a Jar Birthday Cake in a Jar Easter Tie-Dye Cake in a Jar Pinkalicious Cake-In-A-Jar Comments: (143) Tags: cake in a jar, cupcake in a jar, mason jar cake, rainbow cake, rainbow cake in a jar, tie dye cakeGo Back To Family Kitchen143 Comments [...] ’bout to attempt some rainbow cake! Check back later for more [...] Aye, Cap’n. | commented on Apr 10 11 at 7:30 pm [...] credits (clockwise, from top left): Broke-Ass Bride, Babble, ArtNectar, Inspired Parties, Juicy Bits, Love to Know, The Wedding Queen, SmugMug, Hostess With [...] Inspiration: Enchanted Unicorn & Rainbow Birthday Party « Events by Elisa commented on Apr 10 11 at 10:11 pm [...] out all the fabulous details for the Rainbow Cake in a Jar on Babble. (Babble…love that name.) Share and [...] Babble: Rainbow Cake in a Jar | Shindig Diva commented on Apr 14 11 at 10:01 pm [...] Rainbow cake in a jar [...] 9 Rainbow Inspired Noms | That's Noice! commented on Apr 15 11 at 6:38 am [...] rainbow cake in a jar – [...] Friday Faves « LEXoxo commented on Apr 15 11 at 8:14 pm [...] treat that is as pretty to look at as it is to eat. While I layered the colors carefully in the Rainbow Cake In a Jar, I thought it might be fun to add a tye-dyed look to this cake by more loosely layering the colors. [...] Easter Tie-Dye Cake-in-a-Jar | The Family Kitchen commented on Apr 16 11 at 12:13 am [...] Deb also sent me a link for this..Cake in a jar! [...] stuff! « Cindy & Rob's Wedding commented on Apr 16 11 at 3:13 am [...] Learn how here. [...] Rainbow « Kiss Kiss, Bang Bang commented on Apr 19 11 at 3:23 pm [...] via ? babble.com [...] Rainbow Cake in a Jar | rainbowzombiesatemyunicorn commented on Apr 23 11 at 8:46 am [...] make for great dinner party conversations and ever better after-school suprises for your kiddos. Especially this one. Because, who doesn’t love sunshine in a jar?” w/ [...] How To Make Rainbow Jar Cake | UniqueDaily.com commented on Apr 23 11 at 9:22 am [...] Amazing, right? To make them I adapted this recipe for lemon cake and this technique for jar cake. [...] Recipe for Twelve Lemons « Unicorn Parade commented on Apr 27 11 at 5:04 pm [...] cake in a jar. MUST MAKE NOW. http://blogs.babble.com/family-kitchen/2011/04/08/rainbow-cake-in-a-jar/ [...] Blog | Twitter Weekly Updates for 2011-05-15 | commented on May 15 11 at 10:39 am [...] Link: http://blogs.babble.com/family-kitchen/2011/04/08/rainbow-cake-in-a-jar/ [...] Rainbow Cake In a Jar « herestheword commented on May 21 11 at 1:44 am [...] Ridiculously Amazing Recipe: Rainbow Cake in a Jar [courtesy of blogs.babble.com] [...] Ridiculously Amazing Recipe: Rainbow Cake in a Jar | Occupy My Family commented on May 21 11 at 2:18 pm [...] everything has taken center-stage nowadays, from Rainbow Poptarts to Rainbow Cake in a Jar. And, while they are all fine and lovely, there’s nothing quite so fun as this divine [...] How To: Rainbow Frosted Cupcakes | Family Kitchen commented on Jun 14 11 at 7:39 pm [...] Brooke McClay of The Family Kitchen [...] Birthdays & Babies « Hair of the Hare commented on Jun 17 11 at 2:49 pm [...] be wondering what a chocolate chip cookie has to do with being gay. Shouldn’t I be baking up some ridiculously fabulous rainbow cake in a jar or some super crazy pink triangle cookies? But here’s the thing, these cookies are pretty [...] Classic Jumbo Chocolate Chip Cookie Recipe | Eat the Love commented on Jun 20 11 at 8:02 am [...] high priority for Alexis when I noticed most of her pins on pinterest.com include things like this, this, and this. Alexis has a bigger sweet tooth than me. And unlike my strict obsession with ice cream, [...] Take the Cake! | Lovestruck Social Events commented on Jun 24 11 at 5:13 am [...] decided it would be just tops if we made ~rAiNbOw CuPcAkEs~! Since there are literally about eight thousand different recipes online for making rainbow cupcakes, I will try not to go into all the gory [...] Nyancat Cupcakes | Nerdbake commented on Jun 26 11 at 2:30 pm [...] Rainbow Cake in a Jar | Family Kitchen [...] Beautifuldisaster2's Blog commented on Jul 05 11 at 12:44 am [...] to R: Tiny Prints Come Play invitation, Personalized Birthday Cookies, Rainbow Drinks, Chalk, Rainbow Cake in a Jar, Dessert [...] Rainbow Birthday Party Inspiration Board - The Tiny Prints Blog commented on Jul 05 11 at 5:45 pm [...] have been a popular trend across the blogosphere lately. It wasn’t until I saw this post, that I knew I had to try it out myself. I am a lover of bright colors and making rainbow cake is [...] Cupcake-In-A-Jar — My Own Ideas commented on Jul 08 11 at 3:06 am [...] from babble.com [...] planning a rainbow sprinkles party « Gather and Nest commented on Jul 13 11 at 6:34 pm [...] rainbow cake in a jar [...] dessert in a jar « vintageapple commented on Jul 18 11 at 1:54 pm [...] bumped into this blog, and I am currently itching to try it out! maybe i’ll try it out this [...] jars? cakes? YES. « tiny bites, big delights commented on Jul 20 11 at 4:16 am [...] [courtesy of blogs.babble.com] [...] Ridiculously Amazing Recipe: Rainbow Cake in a Jar | Occupy My Family – Greenville commented on Aug 02 11 at 12:37 pm [...] anyone made cake in a jar before? I am going to give it a try. If you do not hear from me, I am likely dead from food coloring [...] Rainbow in a jar — Really Really Much commented on Aug 15 11 at 5:51 pm [...] things are as pretty as this. If only everything that makes us happy in life can be fitted into a jar to be carried around in [...] HAPPINESS IN A JAR « the mystery of Hall 14: slippers saga commented on Aug 17 11 at 9:55 am [...] week is dessert week, woohoo! A friend of ours directed our attention to this recipe for rainbow cake in a jar a few weeks ago, and so we decided to try it. Ours was not nearly as pretty, but we blame that to [...] Rainbow Cake | Cooking On 8th commented on Aug 21 11 at 8:09 pm [...] rainbow cake in a jar [...] "sunshine" in a jar | Two Peas in Their Pod commented on Aug 23 11 at 10:07 pm [...] too. Here is my inspiration for these colorful wonders that I found on Pinterest (originally from here). The jar version seemed less complicated than some of the bigger whole cake [...] Rainbow Cakes in a Jar | We Heart Minnesota commented on Aug 26 11 at 10:02 am [...] pinned on Pinterest and it was just the day to try them (you can find the link I’d repinned here – we had reasonable success, but the cake colors did run a bit (more tie dye, than rainbow) and we [...] Bam! Boof! Clang! Pow! « MamaNut commented on Aug 28 11 at 9:01 pm You are crazy! these are awesome! I want to have a 70s psychedelic party and serve these! JulieVR commented on Apr 08 11 at 12:47 am Drool. Kathleen commented on Apr 08 11 at 8:16 pm I love this idea. I’m going to try it in baby food jars for my sons 1st bd coming up. A mini cake for everyone! sheila commented on Apr 08 11 at 11:46 pm I have made other types of cake in a jar. Some can keep for months if properly stored. This cake would be really cool if it was done in the wide mouth quart canning jars, because then you can pop it out and the slices would be so cool. Thanks for a great idea.. Cammie commented on Apr 11 11 at 8:44 am What a fun idea!! Love it!! Thank you so much for sharing this! Michelle commented on Apr 11 11 at 10:32 am I LOVE this! Sue commented on Apr 11 11 at 10:52 am this is the perfect thing to send to my brother for his birthday this week, he’ll love it! Katie commented on Apr 11 11 at 11:09 am That looks so pretty, I love how you can see the colours right away. And if you don’t finish it you can put a lid on the jar and take it to go! Awesome. Bright Shadows commented on Apr 11 11 at 1:01 pm Love it will definetly try this Jael Cain commented on Apr 11 11 at 2:01 pm Okay, so did anyone who commented actually try this… do tell how it worked out for you….. Windi commented on Apr 11 11 at 10:15 pm WONDERFUL idea !! Will definitely try this sooon! Recently posted a great vanilly cupcake recipe which guarantees nice domes :-) http://www.wechooseorganic.com Stop by :-) Nina from wechooseorganic.com commented on Apr 12 11 at 7:50 am i did the recipe and for some reason when i let the cake cool, they shrunk in the jars! anyone know why? Eddy commented on Apr 13 11 at 2:33 am Did anyone care to think that the jars would break from the heat in the oven? Elena commented on Apr 13 11 at 11:17 am OMG! LOVE these. Tablespoon.com (where I work) has been doing a bunch of rainbow stuff lately. We have your post featured on our Facebook page! Check it out! http://www.facebook.com/!/Tablespoon These are the recipe…… http://www.tablespoon.com/recipe-collections/more-double-rainbow-recipes http://www.tablespoon.com/recipe-collections/double-rainbow-recipes Erin commented on Apr 13 11 at 3:00 pm At ELENA: Exactly, thats what I was thinking. Because today I kept a glass of joghurt instead of throwing it away and I wanted to try the cake in a jar as well. I dont know whether I can use normal, ordinary glasses/jars from the supermarket that had joghurt or other stuff in them… Does anybody know?? Just baked sugar cookies and coka cola cupcakes…they are soooo delicious!! Will post the recipes on http://www.wechooseorganic.com in a couple days. Greetings everyone Ninah Ninah from wechooseorganic.com commented on Apr 13 11 at 4:40 pm Love, love love!!!!! My kids will go nuts over these! :) Kate commented on Apr 13 11 at 5:47 pm @ Elena the jars should be able to withstand the heat in the oven as they shouldve been annealed in a lehr previous to them going on sale, also the placing them in a tin of water helps Lauren commented on Apr 14 11 at 7:21 am Awesomeness!!! Kim commented on Apr 14 11 at 10:35 am This is probably the most adorable thing I’ve ever seen. My friend and I have started this tradition where we send treats back and forth in the mail (she’s in Pensacola and I’m in Orlando) just as a Thinking of You! type thing. In the last box I got she had put mini cupcakes inside mini mason jars and I’ve been stumped with what to send back because I’m worried about the Florida heat. But this is perfect (sans icing)! I’m super excited to hear about her reaction when she opens the box and finds these beauties. Thanks for the great idea!