A festive layer cake with pastel rainbow colors, coated in silky frosting and adorned with cheerful sprinkles—delightful and joyful for any celebration.
Author:Emma Harper
Prep Time:30 minutes
Cook Time:25 minutes
Total Time:Approximately 1 hour 15 minutes
Yield:Serves 12–16
Category:Dessert
Method:Baking
Cuisine:American
Diet:Vegetarian
Ingredients
All-purpose flour
Baking powder and baking soda
Salt
Sugar
Unsalted butter
Eggs
Vanilla extract
Milk or buttermilk
Gel food coloring in pastel shades
Buttercream or cream cheese frosting
Rainbow sprinkles
Instructions
Preheat oven to 350°F (175°C). Grease three 8-inch cake pans and line with parchment.
Whisk flour, leaveners, salt, and sugar.
Beat in butter, eggs, milk, and vanilla until smooth.
Divide batter into pastel shades, tinting each with gel coloring.
Pour paints into pans and bake 20–25 minutes until a toothpick comes clean. Cool completely.
Frost between layers and coat entire cake with buttercream. Press sprinkles into sides and top.
Chill briefly to set before slicing.
Notes
If you’d prefer not to use food coloring, you can skip it and create a plain cake or use natural colors such as berry purées.
For frosting, classic buttercream holds sprinkles well, while cream cheese frosting adds a tangy flavor.
If you’re short on time, you can use a boxed cake mix. Just add the gel food coloring and follow the box instructions.
For even layers, use a kitchen scale for batter or eyeball equal amounts. Make sure the cake layers are completely cooled before frosting.
If you’d like to pipe designs, frost the cake with a base layer, chill to firm up, and then pipe swirls or other decorations.
Nonpareils or jimmies sprinkles work best for this cake. Press them gently into the sides and top to set.
You can make cupcakes instead of a cake—fill cupcake liners with pastel batters and add sprinkles after frosting.
If preparing ahead, bake the layers and either flash-freeze or refrigerate for 1–2 days. Assemble the cake just before serving.
To avoid a dry cake, make sure not to over-bake it. Use a precise oven temperature and check the cake early.
Flavor extracts like lemon, almond, or coconut can be added for extra flavor in the frosting or batter.