cake/ Jello cake/ recipe

Rainbow J-E-L-L-O Cake!


Yesterday was my hubby’s birthday, and every year he orders the same cake. A Rainbow Jello Cake! Made with grape Jello, and one other flavour that the kids get to pick…this year they chose lime! (a secret yeay!  from Mom, because lime is my fave!)

This is such a fun cake that most people love! You can’t seem to go wrong with Jello, white cake, and whip cream!  Yeeuuum.

How to Make a Rainbow Jell-O Cake
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Rainbow J-E-L-L-O Cake!


  • 1 white cake mix (2 layer cake no pudding)
  • 2 packages of Jello: 2 different flavours
  • 2 cups boiling water
  • whipping cream (you can use real whipping cream or cool whip)


  1. Bake your cakes according to the package directions, for a 2 layer cake. Tip! I spray the pans with cooking oil spray, then I line the bottoms of the pans with a circle of wax paper. From my experience with this cake, this is a necessary step! It can be so hard to get the cake out.
  2. Once the cakes have been baked, remove them from the oven, and let cool for 15 minutes.
  3. In the mean time, its Jello time! ** See the image above for more help! **
  4. Get out 2 glass measuring cups or bowls.
  5. Add 1 cup of boiling water to each bowl.
  6. Add 1 package of Jello to one bowl, the other package of Jello to the other bowl.
  7. Stir to dissolve.
  8. Once your cakes have cooled for 15 minutes, use a fork and poke holes all over them. Make sure you poke your holes deep so the Jello can get all through the cake.
  9. Pour your Jello over your cakes, one flavour on each cake.
  10. Refrigerate for at least 4 hours. You can leave them un-iced overnight in the fridge.
  11. After they have refrigerated, un-mold them, and frost with whipping cream.

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 Here are some more delicious Jell-O variations:
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Rainbow Jell-O Cake
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Blue & Lime Jell-O Cake
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Rainbow Jell-O Cake
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Orange & Grape Jell-O
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I bet you can’t eat just one slice!  As a matter of fact, I’m going to go have one right now!
Happy Baking!

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  • Reply
    August 30, 2011 at 2:52 PM

    Love this cake! happy days for Tobin!

  • Reply
    August 30, 2011 at 3:28 PM

    This looks like fun! I might have to try it this weekend for the girls’ b’day cake!

  • Reply
    The Doodler
    August 30, 2011 at 3:58 PM

    This looks fun and delicious! I’m pinning this recipe right now, thanks for sharing. I found your blog through the sugar bee link party and I’m following!

    Brie from

  • Reply
    Barefoot Pregnant and In The Kitchen
    August 30, 2011 at 4:11 PM

    This must be such a hit with the kids too! Mine would go nuts over the bright colors. I’ll have to try this. What an awesome idea… and easy recipe!! I’ll be saving this for our next bday party! I think I’ll be the coolest mom in town!

  • Reply
    August 30, 2011 at 5:07 PM

    That is so much fun 😀 I Love it!

  • Reply
    August 30, 2011 at 5:37 PM

    I’ve tried this before – but never with grape!! I’m going to have to try it out for Halloween! Grape and an orange flavor!! 🙂

  • Reply
    Meghan @ Wishful Thinking
    August 30, 2011 at 7:52 PM

    This is probably the coolest cake I have ever seen. Soooo trying it! Thanks for the recipe!

  • Reply
    Stephanie @ henry happened
    August 31, 2011 at 1:23 AM

    I have never heard of this – it looks so cool. Caroline & Mark’s birthdays are next week – this would be super fun!

  • Reply
    Deborah March
    August 31, 2011 at 11:37 AM

    Oooohhh YUM! My grand-boys will LOVE this!

    Deborah (happily visiting from

  • Reply
    August 31, 2011 at 3:50 PM

    That is one pretty cake! I love the whole idea of adding jello to it. I must give it a try!

    I would love to have you share this at my link party, Show & Share!

  • Reply
    August 31, 2011 at 5:19 PM

    Oh my gosh how yummy!!!! That looks soooo good and I’m sure it tastes even better!!!

  • Reply
    Rug Cleaning Los Angeles
    August 31, 2011 at 10:06 PM

    I love the endless possibility of colors that you could do with this! What a great idea 😀

  • Reply
    Lady Behind The Curtain
    September 1, 2011 at 1:08 AM

    What a beautiful cake! Please…come over to Cast Party Wednesday and share this amazing cake with us!
    I hope to see you there!

  • Reply
    September 1, 2011 at 4:32 PM

    Looks so pretty and delicious too! I have never made one, but am definitely going to try one now. Come over and visit us. We have a terrific scone recipe today.

  • Reply
    September 2, 2011 at 3:19 AM

    What a fantastic recipe! I just wanted to let you know that I loved your post and I shared a link to your blog on my Notepad feature that will be posted tomorrow morning. Thank you so much for sharing! 🙂

  • Reply
    Vivian, but you can call me Viv.
    September 3, 2011 at 12:13 AM

    i love jello cake. it is so refreshing. i really like the colors you used! they totally pop.

  • Reply
    Tonia @
    September 3, 2011 at 1:06 AM

    Yum! This looks delicious! My mom used to make Jello cake for us but she always used strawberry. I think my kids would love other flavors!

  • Reply
    September 3, 2011 at 2:00 AM

    What a wonderful idea! I would have never thought of using different colors for each layer! I am your newest follower and I would love it if you would link this up to my Weekend Soiree at Homemaker in Heels! Have a fantastic weekend!
    Homemaker in Heels

  • Reply
    September 3, 2011 at 4:20 AM

    My Memaw used to make Jell-O cake! I love how the purple and lime looks, so pretty!

  • Reply
    E @ Act Fast Chef
    September 3, 2011 at 12:40 PM

    Love this! I am going to make this for a cookout tomorrow 🙂 THanks for the idea!

  • Reply
    September 4, 2011 at 4:32 PM

    I just wanted to say that the cake looks FANTASTIC. I think I’m going to need to run out and pick up another couple packages of JELLO and give that a whirl.

  • Reply
    September 4, 2011 at 6:56 PM

    looks amazing! I just made a rainbow cake for my daughter’s birthday, but your recipe looks much yummier!

  • Reply
    Mrs Happy Homemaker
    September 5, 2011 at 3:17 PM

    I have this pinned on Pinterest, & I can’t wait to try it! I would love it if you linked up on my blog hop, Makin’ You Crave Monday, over at!!

  • Reply
    Madigan at madiganmade
    September 6, 2011 at 1:35 AM

    What a neat way to add color and flavor to a cake! (and it’s pretty, too!)

  • Reply
    September 6, 2011 at 2:02 AM

    I’ve never heard of doing this before but its definitely something I’d like to try!

  • Reply
    September 6, 2011 at 3:23 AM

    What a fun cake! My daughter loves to help in the kitchen and she would love doing this! Thanks for linking with us at Show & Share!


  • Reply
    Lady Behind The Curtain
    September 7, 2011 at 7:23 AM

    Thank you so much for sharing your recipe with me at Cast Party Wednesday. Your recipe was one of the top 3 most viewed links! Congratulations!!! You’ve been featured!!! Please come over and grab the featured button and share more of your delicious recipe with us!
    Thanks Again!

  • Reply
    Lady Behind The Curtain
    September 7, 2011 at 7:23 AM

    Thank you so much for sharing your recipe with me at Cast Party Wednesday. Your recipe was one of the top 3 most viewed links! Congratulations!!! You’ve been featured!!! Please come over and grab the featured button and share more of your delicious recipe with us!
    Thanks Again!

  • Reply
    BreAna {Sugar and Spice and All Things Iced}
    September 9, 2011 at 8:25 PM

    What a fun cake! I love it! I definitely need to give it a try sometime!

  • Reply
    Katie @ The Crafty Blog Stalker
    September 22, 2011 at 2:31 PM

    MMMMM This looks amazing!

    I would love if you would come share with Blog Stalking Thursday at The Crafty Blog Stalker.

  • Reply
    free standing toilet paper holder
    February 28, 2012 at 5:24 PM

    That is so much fun…I Love it!

  • Reply
    April 4, 2012 at 1:13 PM

    This recipe is even easier if you simply divide the cake mix in half, mix one packet into each half and them bake. Turns out pretty much the same.

  • Reply
    Friday Good Eats, a Recipe Blog Roll - July 12th 2013 - Ottawa Valley Moms :: Ottawa Moms, Arnprior Moms & Renfrew Moms on Parenting, Life, Love and Staying Connected
    July 12, 2013 at 1:01 PM

    […] Life is sure to be a favourite amongst kids and like my recipe, very versatile too! She shared a Jello Rainbow Cake recipe! The kids would have a blast pouring the jello over the cakes and then amazed when the cakes […]

  • Reply
    Paula B
    April 29, 2015 at 12:45 AM

    I’ve been making these jello cakes for decades, although have never tried grape!!… Orange and lime is a great combo, too. I’ve also made a one layer sheet cake with 2 packages of strawberry jello. Then I stir sweetened sliced strawberries (from the frozen food aisle – thawed) including the juice, into the whipped topping before icing cake (you have to refrigerate it again for the topping to ‘firm’ up again)…. it makes the icing pink! YUM!… love these cakes!

  • Reply
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    April 29, 2015 at 7:54 AM

    […] Rainbow Jello Cake from A Pretty Life – Want the rainbow look without *quite* so much work? Check out this pretty and delicious Rainbow Jello Cake. […]

  • Reply
    February 26, 2016 at 12:05 PM

    I have a video of a party my mom arranged for my friends and I, over 25 years ago, and she made this cake. It was clearly a hit– there’s about 15 minutes of footage of 9-11 year olds speaking their minds with mouths full of jello cake. Now that my 7 year old son has seen the video, he wants jell=o cake. Thanks for the easy reference on how to put this together.

  • Reply
    Margaret -Ann Hanlon
    January 1, 2019 at 1:59 PM

    This is by far the worst cake I have ever eaten. Looks pretty but is so wet and gross. All the kids at the birthday party ate one bit and threw the rest out. Total waste.

    • Reply
      Jo-Anna Rooney
      January 2, 2019 at 2:17 PM

      I’m sorry to hear that Margaret -Ann. I have made it countless times and have never had that problem, it’s a family favourite! The only thing I can think of is maybe there was too much water in the Jello?

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