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Rainbow Layer Cake

Fruity gelatin helps create the rainbow effect for this pretty cake. Lemon frosting is a nice and springy finishing touch. —Dawn Shackelford, Fort Worth, Texas
  • Total Time
    Prep: 20 min. Bake: 20 min. + cooling
  • Makes
    16 servings


  • 1 package white cake mix (regular size)
  • 3 large eggs, room temperature
  • 3 tablespoons each lemon, strawberry and orange gelatin powder
  • 2 cans (16 ounces each) lemon frosting


  • Preheat oven to 350°. Line bottoms of three greased 9-in. round baking pans with parchment; grease paper.
  • Prepare cake mix batter according to package directions, substituting three whole eggs for egg whites. Divide evenly among three bowls. Stir one flavor of gelatin into each bowl until blended. Pour each into a prepared pan. Bake 20-25 minutes or until a toothpick inserted in center comes out clean.
  • Cool in pans 10 minutes before removing to wire racks; remove paper. Cool completely. Spread frosting between layers and over top and sides of cake.
  • Freeze option: Wrap cooled cake layers in plastic wrap, then cover securely in foil; freeze. To use, thaw cakes before unwrapping. Assemble as directed.
Editor's Note: This recipe was tested with a Betty Crocker white cake mix (regular size). Test Kitchen Tips
  • For more tips, see our chocolate layer cake guide.
  • Nutrition Facts
    1 slice: 444 calories, 16g fat (6g saturated fat), 35mg cholesterol, 377mg sodium, 72g carbohydrate (53g sugars, 1g fiber), 3g protein.

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    Average Rating:
    • ebramkamp
      Sep 22, 2019

      I wanted to make a layered cake with my granddaughter so she chose this recipe. I have 6" cake pans that make a 5 layer cake using a standard cake box mix. So we added two layers. Green/lime and blue/blueberry. We also made a stabilized whipped cream for the frosting. This cake is fun and when sliced open guaranteed to WOW. It's fun and delicious to have all the different fruit flavors. Everyone was so thrilled with this cake. It looks like you spent hours making it but starting with a cake mix it6actually pretty easy. I will definitely be making this again.

    • Nova
      Apr 23, 2019

      I rarely use cake mixes but this was so pretty for Easter; I couldn’t resist. So easy and fast - I made lemon buttercream frosting, put sprinkles on top, and surrounded the cake with jelly beans (on plate). Next time, I will reduce the gelatin powder to 2 tablespoons each for a little less sweetness; we’ll see.

    • Gramma Amy
      May 25, 2018

      I rarely used cake mixes, but needed something easy for Memorial Day picnic. Saw this, and loved the colors. It was indeed easy, fruity, pretty, and good! I wanted my layers to be full size 9 inch layer cakes, and not thin. One cake mix makes only 2 full sized layers. So, I doubled this recipe, and filled my cake pans a little fuller, and had enough left to make 12 regular sized cupcakes. It took a small box of each flavor of gelatin in the double recipe, so no measuring needed. I used a cookie scoop to drop Tbsp sized balls of batter into the cupcake liners, alternating the colors. They came out marbled and pretty! I also used 2% milk in place of the water as it gives a little richer cake batter. I baked the cakes for 30 minutes, and the cupcakes for about 20. I made lemon buttercream frosting to fill and frost the cakes, increasing the recipe to have enough for the cupcakes. I will definitely make this cake again.

    • gramgram4ever
      May 6, 2018

      reread closely found where they are listed

    • Carolyn
      Apr 3, 2018

      Make it for Easter Dinner and the family truly enjoyed this moist colorful cake. I will make again. Thanks for sharing.

    • Christian55
      Mar 19, 2018

      This cake is amazing. Soft and moist and colorful. The colors and flavor possibilities are endless. I usually cut a whole cake in half to freeze for a later time. This cake disappeared before I could freeze half of it. This cake has earned a place in my give-away collection.

    • sstetzel
      Oct 26, 2015

      Hi 235gbt, the recipe asks you to use the 3 whole eggs in place of the egg whites called for in the directions on the box cake mix.Hope that helps.Sue StetzelOnline Community ManagerTaste of Home Magazine

    • 235gbt
      Oct 25, 2015

      I am confused - it calls for 3 eggs - then in the directions - it says to use egg whites? which is the right answer... 3 eggs or egg whites and does it make a difference as to which eggs I use?

    • debpenns
      Jul 22, 2015

      No comment left

    • k_s9
      Jul 11, 2015

      This is indeed a very pretty cake ...was soft and moist but little crumbly..and next time would reduce the oil by a tbsp or two cuz the paper underneath the cake showed extra oil...I used another cake icing recipe also available in TOH (lemon orange cake recipe) for this's citrus lemony flavour blended really well with this cake but was a little sweet although I used only 4 cups of the icing sugar then what the recipe called does taste like eating a fruit candy time will try to enhance the flavor by adding a tbsp of lemon juice, orange juice and stawberry juice or essence!! Will let u know how it turns out :)