I did this cake for a little 3 year old and all she wanted was a pink castle cake. I heard she was thrilled and she and the other kids at the party were eating everything on the cake even the rice paper flags.
It was a marble cake with ganache and hazelnut buttercream fillings. I also put the crunchy pearls in the ganache for a little surprise crunch.
The cake only needed to feed 13 people so I made a 9" X 4" which would feed about 22 people.
It was fun to make and for my first castle cake I was happy with the outcome.