What is a birthday cake?

A birthday cake is a cake baked and decorated to celebrate a person's birthday. It's typically a sweet treat, often decorated with candles representing the person's age and frosting in various colors and designs.

Here are some key features of a birthday cake:

* Purpose: To celebrate a birthday.

* Type: Usually a sweet cake, although savory cakes exist.

* Decorations: Candles, frosting, sprinkles, and other decorative elements are common.

* Shape: Round, square, or even themed shapes are possible.

* Flavor: Vanilla, chocolate, strawberry, red velvet, and many other flavors are popular.

The tradition of birthday cakes goes back centuries, and it's now a global custom, symbolizing joy, celebration, and wishes for the birthday person.