1 overripe banana, mashed
5g/â…›oz fresh ginger, peeled and grated
900g/2lb white sweet potatoes, peeled and finely grated (use orange if you can’t find white )
1 x 400g/14oz tin coconut milk
1 x 400g/14oz tin evaporated milk
200g/7oz plain flour
2 tsp ground cinnamon
60g/2¼oz freshly grated coconut or desiccated coconut
2–3 tbsp icing sugar, to dust
100g/3½oz dark muscovado sugar
2 tsp ground nutmeg
2 tsp vanilla extract
1 tbsp butter