Guests are going to swoon after seeing the first slice of this rainbow cake.
Here’s how to make ourrainbow cake recipe, including the most delicious homemade buttercream frosting.
Ingredients
2(16.25 oz.
Credit: Rachel Marek
Grease pan with nonstick spray and line with 1 sheet of parchment.
In a medium bowl, prepare cake batter according to package directions.
Divide batter evenly into 3 bowls (you should have about 1 1/3 cups batter per bowl).
Tint one bowl red, one orange, and one yellow and stir until evenly mixed and vibrant.
Pour red batter into prepared pan and bake about 10 minutes or until set.
Remove pan from oven and cool on a wire rack for 10 minutes.
Using parchment handles, remove cake layer from pan and cool completely (with parchment) on wire rack.
Repeat with orange and yellow batter.
Prepare second box of cake mix and this time tint portions green, blue, and purple.
Bake as directed in step 3.
Once all six cake layers are baked and cooled, use parchment to transfer to trays.
Freeze cake layers for at least 30 minutes or until easy to handle.
Meanwhile, wash and dry baking pan; set aside.
To prepare frosting, in a large bowl beat butter on medium-high until creamy.
Increase mixer to medium-high and beat 3 minutes more.
Beat in vanilla extract and salt until combined.
Add heavy cream and beat on medium-high 1 minute more.
To assemble cake, remove parchment and place red layer in the bottom of the baking pan.
Spread with about 1/2 cup frosting.
Repeat with remaining cake layers and frosting.
If desired, top cake with sprinkles.
2,000 calories a day is used for general nutrition advice.
