the video says it all.

the recipe is from here (i doubled it for 6 people and it was too much… has been breakfast food the past couple of days!)

125g plain flour
Pinch of salt
60g caster sugar
2 teaspoons baking powder
2 tablespoons cocoa
1/2 cup rhubarb, chopped and cleaned
1/2 cup milk
40g butter, melted
1 egg
Few drops vanilla essence

180g brown sugar
2 tablespoons cocoa
1 cup boiling water

Method:

Pre-heat the oven to 180 degrees Celsius and butter your pie dish.

Sift flour, salt, castor sugar, baking powder and cocoa into a bowl and then gently stir in rhubarb.

Combine milk, melted butter, egg and vanilla and mix into dry ingredients. Pour into pie dish.

To make the topping, mix brown sugar with the cocoa and sprinkle over the pudding batter. Pour boiling water carefully over all ingredients.

Bake for 40-45 minutes until the pudding feels firm. To serve, spoon out cake with its sauce while it is hot.