For the first layer, mix ingredients from sugar to salt well. Add the milk and oil/ butter and fold in well till completely moist. Spread into the pan.
Mix the cocoa and sugar for the second layer. Sprinkle on top of the first layer.
Pour the hot water all over - do not mix.
Bake for 30 minutes or till the top looks set.
Take out and allow to cool for 5 minutes.
Scoop out and serve warm with ice cream or whipped cream!
Notes
You can make this dessert vegan, by replacing milk with almond milk or soy milk and butter with oil.