6 Layer Rainbow Cake Recipe with Easy Buttercream Frosting
Indulge in a slice of joy with this vibrant 6 Layer Rainbow Cake Recipe featuring Easy Buttercream Frosting! Perfect for any celebration, this stunning cake boasts six colorful layers that will captivate your guests and add a festive touch to birthdays, baby showers, or family gatherings. Utilizing boxed cake mix makes it accessible for bakers of all levels, while the homemade buttercream frosting brings a rich creaminess that perfectly complements each fluffy layer. Customize the colors for any occasion and watch as everyone marvels at your beautiful creation. This cake is not only a feast for the eyes but also a delightful treat for anyone with a sweet tooth.
- Prep Time: 30 minutes
- Cook Time: 40 minutes
- Total Time: 1 hour 10 minutes
- Yield: Serves approximately 12 people 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
Ingredients
Scale
- 2 boxes white cake mix
- 6 eggs
- 2/3 cup canola oil
- 2.5 cups water
- Wilton Gel Food Coloring
- 1 cup unsalted butter (room temperature)
- 4 tbsp milk
- 4 tsp clear vanilla extract
- 4 cups powdered sugar
Instructions
- Preheat the oven to 350°F. Prepare wax paper templates by tracing the bottom of your cake pans and cutting out circles.
- Mix white cake mix, eggs, oil, and water until smooth. Divide batter into bowls and add gel food coloring to each.
- Pour colored batter into prepared pans and bake for about 8–12 minutes. Let cool before leveling off the tops.
- Prepare buttercream by mixing butter, powdered sugar, milk, and vanilla until smooth.
- Stack layers with buttercream in between, chilling each layer briefly for stability.
- Apply a crumb coat and finish with additional frosting for an even finish.
Nutrition
- Serving Size: 1 slice (85g)
- Calories: 320
- Sugar: 30g
- Sodium: 220mg
- Fat: 15g
- Saturated Fat: 7g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 44g
- Fiber: 0g
- Protein: 3g
- Cholesterol: 45mg