Instead of the sponge of a classic charlotte, I have used poached pear here to give an interesting twist. The taste is ethereal and the dessert is as light as a feather in the mouth.
To make the lime cigar biscuits, put the castor sugar and butter into the bowl of an electric mixer and beat on medium speed until white and creamy, about 10 minutes. Gradually add the egg whites to the creamed mixture, then incorporate the lime juice and zest. Add the flour and work until the dough just comes together Spread the mixture evenly onto a buttered and floure