Whisk the eggs thoroughly.
Cream the butter and sugar to
make it light and frothy and
slowly beat in the whisked eggs.
Add the lemon rind and cinnamon
and then gradually beat in the
flour, beating continually to
ensure the mixture is kept light.
Line a large cake tin with well
greased paper (vegetable parchment
in the US) and pour in the mixture.
Bake in a pre-heated oven at
375F/190C/Gas Mark 5 for 35
minutes until golden brown and
well risen. You can sprinkle
icing sugar (frosting) on top
five minutes before removing
it from the oven. Allow to cool
for ten minutes before removing
from the tin and cool on a wire
rack. Some people add a layer
of icing (frosting) to the top
once it is cold - but that is
rather at variance with the
title of "Diet Loaf".
is a very light sponge which was known
in the days of Sir Walter Scott (he
mentions it in his novel "St Ronan's