Ingredients:
175g self-raising flour
50g cocoa powder
150ml milk
150g caster sugar
50g butter, melted and cooled
For the Sauce:
75g soft brown sugar
2 tbsp cocoa powder
400ml cold water
Method:
Sift the flour and cocoa powder into a bowl and stir-in the sugar. Add the milk and butter and beat to form a batter. Turn this into an oven proof-dish then place in an oven pre-heated to 180°C and bake for about 40 minutes, or until the top of the pudding has coloured and a skewer inserted into the centre emerges cleanly.
In the meantime, combine all the sauce ingredients in a pan and bring the mixture to a boil, stirring continually. Cut the cake into slices or wedges and pour a little of the chocolate sauce over the top before serving.