Not sure which kind of charlotte you are talking about. Here is a recipe for a charlotte cake from cooks.com just copy and paste these links: http://www.cooks.com/rec/view/0,196,150 … 96,00.html Just typing in charlotte cake on google yielded lots of different variations. good luck!
"Unrefined sugars: These are made from pure unrefined sugar cane. This means the colour and flavour that is naturally present in sugar cane has not been refined out to make the sugar pure white. The most recent addition to this range is unrefined icing sugar. I love its flavour and pale-caramel colour when made into icing, and so would now tend not to use white. Golden caster sugar is another favourite I use for baking ."