Step #1
Place the sultanas, currants, chopped cherries and rum in a bowl and mix well. Cover and leave to soak overnight.
Step #2
Place the cake mix, water, oil, mixed spices and soaked fruit into a bowl.
Step #3
Mix together to form a smooth batter. Pour into a well greased pre-lined loaf tin.
Step #4
Sprinkle with the demerara sugar.
Step #5
Bake in a lower half of a pre-heated oven 170 °C (340°F, Gas Mark 3) for approximately 60-70 minutes until golden brown and baked through.
Step #6
Remove from tin after 15 minutes and cool on a wire tray.