Preheat the oven to 180oC/350oF/Gas
4. Then grease a 900g loaf tin.
Beat the butter and sugar together
until light and fluffy, then gradually beat in the eggs. Fold in the
flour and the orange and lemon rinds.
Turn the cake mixture into the cake
tin and bake for 1 1/4 - 1 1/2 hours, until set in the centre, risen and
golden. Remove the cake from the oven, but leave in the tin.
To make the syrup, gently heat the
sugar in the lemon juice until melted, then boil for 15 seconds. Pour
the syrup over the cake in the tin and leave to cool.