Naked Rainbow Cake

3 min read September 13, 2026 Tonya Coleman
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Nothing says spring like a rainbow, right? How gorgeous is this Rainbow Naked Cake and let me tell you, it is not as hard as they look to make! I found this Wilton Easy Layers pan set that allows you to bake all five layers of your cake at the same time. Your cake will be 6″ round as the pans included in the set are 6″ round. Let’s get started.

Recipe Time
30 to 40 min
Difficulty
Beginner
Servings
6 to 8 Servings
Ingredients:
Yields 1 Cake
  • White Cake Mix
  • 3 Eggs (Whites Only)
  • 1 1/4 c. of Water
  • 1/3 c. of Vegetable Oil
  • White Icing
  • Non-stick Baking Spray
  • Wilton Easy Layers Cake Pan Set (or five 6″ round pans)
  • Wilton Gel Food Colors (rainbow colors of your choice)
Step
1

Preheat the oven to 325 degrees. Prepare your cake mix. Place the cake mix, egg whites, water and vegetable oil in a bowl and mix on medium speed for two minutes until well combined.

Naked Rainbow Cake step 1 part 1
Naked Rainbow Cake step 1 part 2
Step
2

Separate the cake batter into five small bowls.

Naked Rainbow Cake step 2
Step
3

Tint each bowl of cake batter a different color by squeezing some of the food coloring into the batter and stir it thoroughly until the batter is the brightness of color you want. Repeat for all five bowls.

Naked Rainbow Cake step 3 part 1
Naked Rainbow Cake step 3 part 2
Step
4

Spray each pan with non-stick baking sprayPour the colored batter into five 6″ round cake pans. Bake in a 325 degree oven for 20 minutes.

Naked Rainbow Cake step 4 part 1
Naked Rainbow Cake step 4 part 2
Step
5

Remove from the oven and let cool in the pans for five minutes. Remove the cakes by flipping them upside down and allow them to cool completely on a cooling rack.

Naked Rainbow Cake step 5
Step
6

Place a 6″ cake board on top of a Footed Cake Stand and place the purple layer on the board. Spread some of the white icing on top of the layer. Place the blue layer on top of the icing and spread icing on top of it. Continue with the remaining layers in color order of the rainbow with icing in between each layer.

Naked Rainbow Cake step 6 part 1
Naked Rainbow Cake step 6 part 2
Naked Rainbow Cake step 6 part 3
Step
7

When you get to the top layer, spread icing along the top to fully cover the top layer. Cover the entire top of the cake with rainbow sprinkles or Rainbow Mix Chocolate Candy. You’re all done and ready to serve!

Naked Rainbow Cake step 7 part 1
Naked Rainbow Cake step 7 part 2
Step
8

Place each slice on these Gold Dot Dinner Plates with Rainbow Napkins and Metallic Gold Forks. Serve with cold milk in these super cute Ball® Mason Jars with Jeweled Mason Jar Lids and Gold Foil Striped Paper Straws.

Naked Rainbow Cake step 8 part 1
Naked Rainbow Cake step 8 part 2
Step
9

PARTY TIP: If you are making this cake for a birthday party, top the cake with this DIY Rainbow Happy Birthday Cake Topper using any birthday sign and decorating it with Self-Adhesive Rhinestone Jewels and Gold Foil Striped Paper Straws.

Naked Rainbow Cake step 9 part 1
Naked Rainbow Cake step 9 part 2
Step
10

Want to see more of my posts? CLICK HERE for lots of party inspiration, DIY craft ideas and yummy easy to make recipes!

Naked Rainbow Cake step 10

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