fbpx

This rainbow layer cake is sure to make any birthday magical

This post may contain affiliate links.

๐ŸŽ‰ Are you searching for the perfect centerpiece for your next birthday bash? Look no further! This Multi-Layer Rainbow Birthday Cake is not just a cake, it’s a party in itself!

Why this rainbow cake?

๐Ÿฐ Vibrant Layers – Every slice reveals a burst of color that will wow your guests!

๐Ÿฆ Delicious Vanilla Frosting – Smooth, creamy, and perfectly sweet!

๐ŸŒŸ Decorated with Rainbow M&Ms – Adds a fun, crunchy twist to every bite!

๐ŸŽˆ Perfect for All Ages – Kids and adults alike will love the festive look and taste!

๐Ÿ“ธ Instagram-Worthy – Make your party unforgettable with this stunning cake as the star!

Multi-Layer Rainbow Birthday Cake with Vanilla Frosting and M&M Decoration

Ingredients:

For the Cake:

  • 3 cups all-purpose flour
  • 1 tablespoon baking powder
  • 1/2 teaspoon salt
  • 1 cup unsalted butter, softened
  • 2 cups granulated sugar
  • 4 large eggs
  • 2 teaspoons vanilla extract
  • 1 1/2 cups whole milk
  • Food coloring (red, orange, yellow, green, blue, and purple)

For the Vanilla Frosting:

  • 1 1/2 cups unsalted butter, softened
  • 6 cups powdered sugar
  • 1/3 cup heavy cream
  • 2 teaspoons vanilla extract
  • Pinch of salt

For Decoration:

  • 2 cups rainbow M&Ms

Instructions:

1. Prepare the Cake Batter:

  • Preheat your oven to 350ยฐF (175ยฐC). Grease and flour six 8-inch round cake pans (or bake in batches if you don’t have six pans).
  • In a medium bowl, whisk together the flour, baking powder, and salt. Set aside.
  • In a large bowl, beat the butter and sugar together until light and fluffy. Add the eggs one at a time, beating well after each addition. Mix in the vanilla extract.
  • Gradually add the dry ingredients to the butter mixture, alternating with the milk, beginning and ending with the dry ingredients. Mix until just combined.

2. Color the Batter:

  • Divide the batter evenly into six bowls.
  • Add a different food coloring to each bowl to create red, orange, yellow, green, blue, and purple batter. Mix until the color is evenly distributed.

3. Bake the Cakes:

  • Pour each colored batter into its prepared cake pan.
  • Bake in the preheated oven for 18-22 minutes, or until a toothpick inserted into the center comes out clean.
  • Allow the cakes to cool in the pans for 10 minutes, then turn them out onto wire racks to cool completely.

4. Prepare the Vanilla Frosting:

  • In a large bowl, beat the softened butter until creamy.
  • Gradually add the powdered sugar, one cup at a time, beating well after each addition.
  • Add the heavy cream, vanilla extract, and a pinch of salt. Beat until the frosting is light and fluffy.

5. Assemble the Cake:

  • Level each cake layer by trimming the tops if necessary.
  • Place the purple cake layer on a serving plate and spread a thin layer of vanilla frosting on top.
  • Repeat with the blue, green, yellow, orange, and red layers, spreading frosting between each layer.

6. Frost the Cake:

  • Apply a crumb coat by spreading a thin layer of frosting over the entire cake to seal in any crumbs. Refrigerate for 15-20 minutes to set.
  • Apply a thicker layer of frosting to cover the cake completely, smoothing it with an offset spatula or cake scraper.

7. Decorate with M&Ms:

  • Press the rainbow M&Ms into the frosting in any design you like. You can cover the entire cake with M&Ms, create patterns, or write a message with them.

8. Serve and Enjoy:

  • Slice and serve your colorful, festive rainbow birthday cake!

Tips:

  • Ensure each cake layer is completely cool before frosting to prevent the frosting from melting.
  • Use gel food coloring for more vibrant colors.
  • If you don’t have six cake pans, bake the layers in batches, cleaning and re-greasing the pans between uses.

Enjoy your beautifully colorful and delicious rainbow birthday cake!

Make their birthday extra magical with these rainbow birthday cake ideas