Rainbow Poke Cake

Last Updated on February 27, 2021 by Michele Tripple

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This rainbow poke cake is one of a kind! As it combines cake mix, oil, eggs, and jello that is then topped with whipped topping to create something magical for kids and adults alike! You will love how moist and flavorful this cake is with every bite you eat. 

Jello Poke Cake

Right now in our house, we are all about rainbows, sprinkles, and color thanks to Talie! I mean what 5 year old girl doesn’t like these things in their life, am I right? So the other day she was begging for “rainbow cake” so I decided to really wow her with this jello poke cake masterpiece. Say hello to your new favorite cake, Rainbow Poke Cake! 

If your family is obsessed with rainbow foods like we are you will definitely want to try our Funfetti Pancakes, Instant Pot Funfetti cheesecake, and of course of Funfetti Cake Mix Cookies

Rainbow Poke Cake

Prep Time: 5 minutes

Cook Time: 25 minutes

Cool Time: 2 hours

Total Time: 2 hours and 30 minutes

Yield: 1 13×9 inch cake

Servings: 28 slices

Ingredients

  • 1 box white cake mix
  • 1 cup water
  • ½ cup vegetable oil 
  • 3 eggs
  • 4 cups boiling water, divided 
  • 1 3 oz package strawberry jello mix
  • 1 3 oz package lemon jello mix
  • 1 3 oz package blue raspberry jello mix
  • 1 3 oz package lime jello mix
  • 1 8 ounce package of Cool Whip, whipped topping

The Following Tools Will Be Helpful When Making These!

Cake Pan

Measuring Cups and Spoons

Liquid measuring cup

Spatula 

Dessert Plates

Dessert Server

How to Make Rainbow Poke Cake

  • Preheat the oven to 350 degrees and prepare a 9×13 inch baking pan with a light coating of cooking spray. Set aside.
  • In a large bowl, combine cake mix, water, vegetable oil, and eggs. Mix until thoroughly until combined. 
  • Pour batter into the 13×9 pan and bake for 25 minutes. Be sure to make sure that a toothpick comes out clean when inserted. 
  • Set cake aside to cool. 
  • Take the handle of a wooden spoon and poke holes in the cake. Make all your holes 1 inch apart. 
  • In four small bowls, combine each jello package with 1 cup boiling water. Whisk together until fully combined. 
  • Pour 1 Tablespoon of the jello mixture into the holes in the cake. Alternate colors according to preference until each hole has been filled. Do not use all the jello. 
  • Place the cake into the refrigerator and let it cool for 2 hours. 
  • Spread the whipped topping over the cooled cake and top with sprinkles right before serving. 

Tips Tricks and FAQs

  • Get creative! You don’t have to use a white cake mix. You can use a vanilla or a yellow cake mix as well. The thing about the white cake mix is it really helps the colors pop!
  • Don’t rush the chilling process! The bottom is the most important part to allow to settle and will take the full 2 hours. If you rush it and don’t wait, you will wind up with a soggy bottom cake. 
  • If you don’t have a circular wooden spoon you can use a straw or a toothpick. You really just need something that pokes round holes. 
  • Don’t use all the jello! You just want to fill each hole with about 1 Tablespoon of the desired color. 
  • For a perfect cut to really see all the pretty colors clean your knife with each cut!
  • If you are in a hurry you can freeze your cake for 30 to 60 minutes in the chilling process. Just be sure you don’t freeze the cake in the process. 

Storage

Be sure to store your poke cake in the fridge in an airtight container. This will keep for about 3 days. 

Can I use any flavor of jello?

Yes, you can use any flavor of jello! If you want to make a pink poke cake just use pink. Any flavor of jello will work great to recreate this recipe. Try these poke cake flavors as well!

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Yield: 24

Rainbow Poke Cake

Rainbow Poke Cake

This rainbow poke cake is one of a kind! As it combines cake mix, oil, eggs, and jello that is then topped with whipped topping to create something magical for kids and adults alike! You will love how moist and flavorful this cake is with every bite you eat.

Prep Time 5 minutes
Cook Time 25 minutes
Additional Time 2 hours
Total Time 2 hours 30 minutes

Ingredients

  • 1 box white cake mix
  • 1 cup water
  • ½ cup vegetable oil
  • 3 eggs
  • 4 cups boiling water, divided
  • 1 3 oz package strawberry jello mix
  • 1 3 oz package lemon jello mix
  • 1 3 oz package blue raspberry jello mix
  • 1 3 oz package lime jello mix
  • 1 8 ounce package of Cool Whip, whipped topping

Instructions

    1. Preheat the oven to 350 degrees and prepare a 9x13 inch baking pan with a light coating of cooking spray. Set aside.
    2. In a large bowl, combine cake mix, water, vegetable oil, and eggs. Mix until thoroughly until combined.
    3. Pour batter into the 13x9 pan and bake for 25 minutes. Be sure to make sure that a toothpick comes out clean when inserted.
    4. Set cake aside to cool.
    5. Take the handle of a wooden spoon and poke holes in the cake. Make all your holes 1 inch apart.
    6. In four small bowls, combine each jello package with 1 cup boiling water. Whisk together until fully combined.
    7. Pour 1 Tablespoon of the jello mixture into the holes in the cake. Alternate colors according to preference until each hole has been filled. Do not use all the jello.
    8. Place the cake into the refrigerator and let it cool for 2 hours.
    9. Spread the whipped topping over the cooled cake and top with sprinkles right before serving.

Notes

  • Get creative! You don’t have to use a white cake mix. You can use a vanilla or a yellow cake mix as well. The thing about the white cake mix is it really helps the colors pop!
  • Don’t rush the chilling process! The bottom is the most important part to allow to settle and will take the full 2 hours. If you rush it and don’t wait, you will wind up with a soggy bottom cake.
  • If you don’t have a circular wooden spoon you can use a straw or a toothpick. You really just need something that pokes round holes.
    Don’t use all the jello! You just want to fill each hole with about 1 Tablespoon of the desired color.
  • For a perfect cut to really see all the pretty colors clean your knife with each cut!
  • If you are in a hurry you can freeze your cake for 30 to 60 minutes in the chilling process. Just be sure you don’t freeze the cake in the process.

18 thoughts on “Rainbow Poke Cake”

  1. This is SO fun. I’ve never seen anything like it and pinned it to make it later because my son would LOVE this for his birthday cake!

    Reply
  2. Wow! This is really cute. I haven’t tried a jello poke cake looking at your pictures I know that I will love it. Can’t wait to try this. Thank you for sharing the recipe. Wish me luck.

    Reply
  3. I most definitely saved this. My daughter is my rainbow baby and we love to make rainbow food together. Thanks for sharing.

    Reply
  4. This cake is a masterpiece, I loved it! From the colors it gives to the icing on top, everything is so perfect. From the looks, it’s definitely delicious and so yummy.

    Reply

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