How many marzipan balls on a simnel cake?

It depends on the size of the cake and the baker's preference. However, typically, you'll see:

* 11 marzipan balls: Representing the 11 apostles (excluding Judas). This is the most traditional arrangement.

* Less than 11: Some bakers might use a smaller number, especially if the cake is smaller.

* More than 11: If the cake is very large, a baker might add more marzipan balls.

Ultimately, the number of marzipan balls is up to the baker, but 11 is the most common and traditional number.