Print
clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon

Rainbow Jello Cake Recipe

  • Author: Any
  • Prep Time: 20 minutes
  • Cook Time: 35 minutes
  • Total Time: 6 hours (including chilling time for gelatin layers)
  • Yield: 12 servings 1x
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Description

This vibrant Rainbow Jello Cake is a delightful dessert layering colorful gelatin flavors atop a fluffy white cake base, topped with creamy whipped topping and optional rainbow sprinkles for a festive touch. Perfect for celebrations or anytime you want a visually stunning and delicious treat.


Ingredients

Scale

Cake Ingredients

  • 15.25 ounces box of white cake mix
  • 1 cup water
  • ½ cup vegetable oil
  • 4 egg whites, room temperature

Gelatin Layers

  • 3 cups boiling water, divided
  • 3 ounce box strawberry gelatin mix
  • 3 ounce box orange gelatin mix
  • 3 ounce box lemon gelatin mix
  • 3 ounce box lime gelatin mix
  • 3 ounce box berry blue gelatin mix
  • Red, orange, yellow, green, and blue food color gel (5-7 drops each)

Topping and Garnish

  • 8 ounce container whipped topping, thawed
  • Rainbow sprinkles (optional garnish)

Instructions

  1. Prepare the White Cake Batter: In a large mixing bowl, combine the white cake mix, 1 cup water, ½ cup vegetable oil, and 4 egg whites at room temperature. Beat the mixture with an electric mixer for about 2 minutes until smooth and well blended.
  2. Bake the Cake: Pour the cake batter evenly into a greased 9×13 inch baking pan. Bake in a preheated oven at 350°F (175°C) for 30 to 35 minutes or until a toothpick inserted in the center comes out clean. Allow the cake to cool completely in the pan.
  3. Prepare the Gelatin Mixtures: While the cake cools, dissolve each 3-ounce box of gelatin (strawberry, orange, lemon, lime, and berry blue) separately in 3/4 cup of boiling water. Stir each mixture until completely dissolved. Add 5-7 drops of the corresponding food color gel to intensify the color and stir well.
  4. Layer the Gelatin Over the Cake: Once the cake is completely cooled, carefully pour the first gelatin color (red/strawberry) evenly over the cake. Refrigerate until firm, about 45 minutes to 1 hour. Repeat this process for each other gelatin color in order (orange, yellow/lemon, green/lime, blue/berry blue), allowing each layer to set fully before adding the next to create vibrant, distinct layers.
  5. Add the Whipped Topping: After the final gelatin layer is set, spread the thawed whipped topping evenly over the top of the cake for a creamy finish.
  6. Garnish and Serve: Optionally sprinkle rainbow sprinkles over the whipped topping to add a festive, colorful touch. Chill the cake until ready to serve for the best texture and flavor.

Notes

  • Ensure the cake is completely cooled before pouring gelatin layers to prevent melting and blending of colors.
  • Use gel food coloring as it provides more vibrant hues than liquid coloring.
  • Allow each gelatin layer to fully set in the refrigerator to maintain distinct layers.
  • You can substitute the white cake mix with homemade white cake batter if preferred.
  • For easier cutting, run a knife under warm water and dry it before slicing the cake.

Keywords: rainbow jello cake, layered gelatin cake, white cake mix dessert, colorful jello cake, festive dessert, party cake