Nut-Free Rainbow Cake

Brighten any celebration with this show-stopping Nut-Free Rainbow Cake! Featuring six vibrant layers of fluffy, buttery cake—each tinted with a different color of the rainbow—this dessert is as stunning as it is delicious. Made without nuts, it’s a safe and inclusive option for allergy-friendly gatherings. The tender cake layers, infused with a hint of vanilla, are stacked and separated by luscious, creamy buttercream frosting. Perfectly customizable, this cake can be decorated with sprinkles or left elegantly simple. With straightforward instructions and pantry-friendly ingredients, this masterpiece is surprisingly easy to create. Whether it’s for a birthday, special event, or just because, this nut-free rainbow cake is guaranteed to impress both kids and adults!

Nutriscore Rating: 33/100

Prep Time:45 mins

Cook Time:35 mins

Total Time:80 mins

Servings: 12

Ingredients

• 3 cups all-purpose flour
• 1 tablespoon baking powder
• 0.5 teaspoon salt
• 1 cup unsalted butter, softened
• 2 cups granulated sugar
• 4 large eggs
• 2 teaspoons pure vanilla extract
• 1.5 cups whole milk
• 6 brands gel food coloring (red, orange, yellow, green, blue, purple)
• 4 cups buttercream frosting

Directions

Step 1

Preheat your oven to 350°F (175°C). Grease and line six 9-inch round cake pans with parchment paper.

Step 2

In a large bowl, whisk together the flour, baking powder, and salt. Set aside.

Step 3

In another bowl, using an electric mixer, beat the softened butter on medium speed until creamy, about 1 minute.

Step 4

Gradually add sugar to the butter and beat on medium-high speed until well combined and fluffy, about 3-4 minutes.

Step 5

Add the eggs, one at a time, mixing well after each addition. Stir in the vanilla extract.

Step 6

Reduce the mixer speed to low and alternately add the dry ingredients and whole milk to the batter, starting and ending with the dry ingredients. Mix until just combined.

Step 7

Divide the batter evenly into six small bowls (about 1 cup of batter per bowl).

Step 8

Add a different gel food coloring to each bowl and mix until evenly colored. Use red, orange, yellow, green, blue, and purple.

Step 9

Pour each colored batter into the prepared cake pans. Smooth the tops with a spatula if necessary.

Step 10

Bake for 18-20 minutes, or until a toothpick inserted in the center comes out clean.

Step 11

Remove from the oven and allow to cool in the pans for a few minutes, then transfer to a wire rack to cool completely.

Step 12

Once completely cooled, level the tops of the cakes if necessary.

Step 13

Begin assembling the cake by placing the purple layer on a cake plate. Spread a layer of buttercream frosting on top.

Step 14

Repeat with the blue, green, yellow, orange, and red layers, adding frosting between each layer.

Step 15

Frost the top and sides of the cake with the remaining buttercream.

Step 16

Decorate with additional colored sprinkles or decorations if desired.

Step 17

Refrigerate for at least 30 minutes before slicing to allow the cake to set.

Nutrition Facts

Serving size	2540.4 grams (2540.4g)

Amount per serving	% Daily Value*
Calories	9386

Total Fat 427.20g	548%
Saturated Fat 260.80g	1304%
Polyunsaturated Fat 0.40g
Cholesterol 1826mg	609%
Sodium 3649mg	159%
Total Carbohydrate 1292.40g	470%
Dietary Fiber 9.80g	35%
Total Sugars 1001.10g
Protein 77.00g	154%

Vitamin D 321IU	1605%
Calcium 727mg	56%
Iron 22mg	121%
Potassium 1360mg	29%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 41.2%

Protein: 3.3%

Carbs: 55.5%