Ingredients:
For the Cake:
- 2 ¾ cups all-purpose flour
- 1 tablespoon baking powder
- ½ teaspoon salt
- 1 cup unsalted butter, softened
- 2 cups granulated sugar
- 4 large eggs
- 1 tablespoon vanilla extract
- 1 cup whole milk
- Food coloring (red, orange, yellow, green, blue, purple)
For the Frosting:
- 1 cup unsalted butter, softened
- 4 cups powdered sugar
- 1/4 cup heavy cream (or milk)
- 2 teaspoons vanilla extract
- Food coloring (optional, for decoration)
Instructions:
1. Preheat the Oven:
Preheat your oven to 350°F (175°C). Grease and flour six 6-inch round cake pans.
2. Prepare the Cake Batter:
- In a medium bowl, whisk together the flour, baking powder, and salt.
- In a large bowl, beat the butter and sugar together until light and fluffy (about 3-4 minutes).
- Add the eggs, one at a time, mixing well after each addition. Then mix in the vanilla extract.
- Gradually add the dry ingredients to the wet mixture, alternating with the milk. Mix until just combined.
3. Divide and Color the Batter:
- Divide the batter evenly into six bowls. Add a few drops of food coloring to each bowl to create the colors of the rainbow (red, orange, yellow, green, blue, and purple). Mix until fully incorporated.
4. Bake the Cakes:
- Pour each colored batter into the prepared cake pans. Bake for 20-25 minutes, or until a toothpick inserted into the center comes out clean.
- Allow the cakes to cool in the pans for 10 minutes before transferring them to wire racks to cool completely.
5. Make the Frosting:
- In a large bowl, beat the softened butter until creamy. Gradually add the powdered sugar, heavy cream, and vanilla extract. Beat until smooth and fluffy.
6. Assemble the Cake:
- Once the cakes are completely cool, place the purple layer on a cake stand or plate. Spread a layer of frosting on top. Repeat this process with the blue, green, yellow, orange, and red layers.
- Frost the top and sides of the cake with the remaining frosting.
7. Decorate:
- If desired, add extra decorations like sprinkles or colored frosting on top.
Enjoy!
Slice into your beautiful rainbow cake and enjoy the burst of colors! It’s sure to impress at any gathering!
