Rainbow Jello Poke Cake Recipe

Brighten up any celebration with this stunning Rainbow Jello Poke Cake! This vibrant and colorful dessert combines the fun textures of jello and the softness of cake, making it a perfect showstopper for parties, pride events, or kids’ celebrations. Easy to make and incredibly festive, this cake is not only a visual delight but also a delicious one.


  • 15.25 ounces box of white cake mix
  • 1 cup water
  • ½ cup vegetable oil
  • 4 egg whites (room temperature)
  • 3 cups boiling water (½ cup for each jello mix)
  • 3 ounce box of strawberry gelatin mix
  • 3 ounce box of orange gelatin mix
  • 3 ounce box of lemon gelatin mix
  • 3 ounce box of lime gelatin mix
  • 3 ounce box of berry blue gelatin mix
  • Red, orange, yellow, green, and blue food color gel
  • 8 ounce container of whipped topping (thawed)
  • Rainbow sprinkles (optional garnish)


  1. Prepare the Cake: Preheat your oven to 350°F. Spray a 9×13 baking dish with baker’s spray. Mix the cake mix, water, oil, and egg whites using a handheld mixer until smooth. Bake for 25-28 minutes or until a toothpick comes out clean.
  2. Poke Holes: Let the cake cool slightly, then poke holes using the handle of a chopstick or a round wooden spoon approximately ¾-1 inch apart. Allow the cake to cool completely.
  3. Prepare Jello: In separate bowls, dissolve each jello mix in ½ cup boiling water. Add 5-7 drops of corresponding food color gel to enhance the colors.
  4. Fill the Holes: Alternately drizzle the colored jello into the holes using a teaspoon or a drizzling spoon. Be cautious not to overfill to prevent the cake from getting soggy.
  5. Chill: Cover and refrigerate the cake for at least 2 hours to set the jello.
  6. Decorate: Spread whipped topping evenly over the cake. Garnish with rainbow sprinkles if desired.
  7. Serve: Slice into 12 pieces and serve chilled.


  • Experiment with different gelatin flavors to match the theme of your event.
  • Use leftover gelatin to make colorful gelatin squares or decorative shapes for topping.
  • Ensure the cake is completely cooled before topping with whipped cream to avoid melting.
  • Store covered in the refrigerator and consume within 3 days.


Q: Can I use a different type of cake mix? A: Yes, any light-colored cake mix will work as it will showcase the jello colors vividly.

Q: How do I prevent the jello from making the cake too soggy? A: Ensure not to overfill the holes and let the jello set completely by chilling the cake for the recommended time.

Q: Is there a faster way to cool the cake before adding jello? A: Placing the cake in the refrigerator can speed up the cooling process, but allow it to cool slightly at room temperature first to avoid condensation.

Recipe Details

  • Prep Time: 20 minutes
  • Cook Time: 28 minutes
  • Chill Time: 2 hours
  • Total Time: 2 hours 48 minutes
  • Yield: 12 servings
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian


Rainbow Jello Poke Cake is an excellent choice for anyone looking to bring some color and joy to their dessert table. With its easy preparation and delightful flavors, it’s sure to be a crowd-pleaser at any event, making every occasion a bit more special. Enjoy the smiles it brings with every colorful slice!

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