Another variation on a theme, but a very nice one.
175g self raising flour
175g unsalted butter
175g caster sugar
3 medium eggs
zest of two lemons
75g chopped crystallised stem ginger
Cream together the butter and sugar, and add the beaten eggs and flour a little at a time. Fold in the lemon zest and ginger and bake for about 15 minutes in a moderate oven - 190 degrees.
To make icing, mix the juice of the lemons with icing sugar and drizzle. :)