Featherlight Flower Cake

The addition of either violet or rose essence gives this fatless sponge cake a subtle and refreshing flavour. It is quick and easy to make and should really be eaten on the day it is made. But since both adults and children love it and it looks so tempting glistening under its topping of caster sugar it will probably get eaten within moments. If you like, spread a layer of redcurrant or crabapple jelly under the cream in the centre.