Step #1
Using the ingredients listed above for both "Cake 1" and "Cake 2", mix all of the ingredients together by hand to form the two separate batters.
Step #2
Then deposit into a well greased 18cm (7 inch) loaf tin the Madeira batter first followed by the chocolate batter on top.
Step #3
Carefully run through the tutorial images below so you make sure you do not mix the two together to form a uniform coloured batter.
Step #4
Bake in the oven at 160-170ºC (320-340ºF) Gas Mark 3 - 4 for around 50 - 55 minutes until baked. Allow to cool.