Preheat the oven
to 140.C/275"F/Gas1. Grease a deep 20cm/8in round or
18cm/7in square cake tin, line the base and sides
with a double thickness of greaseproof paper and
grease the paper.
Combine the
ingredients in a large mixing bowl. Beat with a
wooden spoon for 5 minutes until well mixed.
Spoon the mixture
into the prepared cake tin. Make a slight depression
in the centre.
Bake in the
centre of the oven for 3 - 3 1/2, hours. Test the cake
after 3 hours. If it is ready it will feel firm and
a skewer inserted in the centre will come out clean.
Cover the top loosely with foil if it starts to
brown too quickly.
Leave the cake to
cool completely in the tin. Then turn out. The
lining paper can be left on to help keep the cake
moist.