Beat the softened butter until creamy and smooth. Gradually add the powdered sugar, beating well after each addition.
Add the heavy cream and vanilla extract, then continue beating until the frosting is light, fluffy, and spreadable. Add food coloring if desired, mixing until evenly blended.
9. Assemble and decorate
Once the cake layers are completely cool, spread frosting evenly over the top of one layer. Place the second layer on top and frost the top and sides of the cake.
Decorate with sprinkles or your favorite decorations. Chill briefly if needed to set the frosting before slicing.
Serving & Storage Notes
Slice and serve at room temperature for the best texture and flavor. This cake stays moist when stored covered at room temperature for up to one day or refrigerated for longer storage. Bring chilled cake to room temperature before serving.
Recipe Details
- Prep Time: 20 minutes
- Cooking Time: 35 minutes
- Total Time: 55 minutes
- Servings: 12
- Calories: ~420 kcal per serving
Soft, fluffy, and endlessly customizable, this classic birthday cake is the kind of recipe you’ll return to again and again—perfect for making every celebration feel special.
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