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Rainbow Jello Cake Recipe

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★★★★★

4.9 from 70 reviews

This Rainbow Jello Cake is a vibrant and fun dessert that combines a moist white cake base with colorful layers of flavored gelatin. Topped with a light whipped cream and garnished with rainbow sprinkles, it’s perfect for celebrations and adds a playful splash of color to your dessert table.

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 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 food color gel, 5-7 drops
  • Orange food color gel, 5-7 drops
  • Yellow food color gel, 5-7 drops
  • Green food color gel, 5-7 drops
  • Blue food color gel, 5-7 drops

Topping and Garnish

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

Instructions

  1. Prepare Cake Batter: In a large mixing bowl, combine the white cake mix, water, vegetable oil, and room temperature egg whites. Mix until smooth and fully incorporated following the cake mix package instructions.
  2. Bake Cake: Pour the prepared cake batter into a greased and floured 9×13 inch baking pan. Bake in a preheated oven at 350°F (175°C) for 25-30 minutes or until a toothpick inserted into the center comes out clean. Let the cake cool completely.
  3. Make Gelatin Mixtures: Dissolve each flavored gelatin mix separately in ½ cup boiling water. Stir until fully dissolved. Add 5-7 drops of the corresponding food color gel to each gelatin mixture to enhance the vibrancy of the colors. Allow the gelatin mixtures to cool slightly at room temperature.
  4. Layer Gelatin on Cake: Once the cake is completely cooled, gently pour each gelatin mixture in layers over the cake. Start with the strawberry (red) gelatin, then orange, lemon (yellow), lime (green), and finally berry blue (blue). Pour slowly and evenly to avoid mixing layers. Refrigerate the cake for at least 3-4 hours or until all gelatin layers are fully set.
  5. Add Topping and Garnish: Once the gelatin layers are firm, spread the thawed whipped topping evenly over the top of the cake. Sprinkle with rainbow sprinkles if desired for a festive finishing touch.
  6. Serve: Cut the cake into slices and serve chilled for best texture and flavor.

Notes

  • Ensure the cake is completely cooled before pouring the gelatin layers to prevent melting and mixing.
  • Adding food color gels enhances the intensity of each gelatin color for a more vibrant rainbow effect.
  • Use room temperature egg whites to achieve better volume and texture in the cake.
  • The cake must be refrigerated for several hours to allow the gelatin layers to set properly.
  • You can substitute the whipped topping with homemade whipped cream for a fresher taste.
  • Store any leftovers covered in the refrigerator and consume within 3 days.

Keywords: rainbow jello cake, layered gelatin cake, white cake with jelly layers, colorful dessert, party cake

Find it online: https://busyrecipe.com/rainbow-jello-cake-recipe/