Although this sounds a bit weird, it's actually delicious and has been a big hit with my friends in the past. It's also great made in individual servings.

Ingredients:

Butter for greasing
150 gm flour
2 tsps baking powder
1/2 tsp baking soda
1 tsp cinnamon
1/4 tsp chilli powder
50 gm cocoa powder (the best quality cocoa you can afford)
200 gm castor sugar
125 ml milk
1 tsp vanilla extract
60 ml corn oil
100 gm brown sugar
175 ml boiling water
60 ml dark rum

Preheat oven to 180' C and grease a 23 cm round baking dish.

Combine flour, baking powder, baking soda, castor sugar, half the cocoa, cinnamon, chilli and a pinch of salt. Beat milk, vanilla and corn oil together. Pour into dry ingredients and mix.

Combine remaining 25 gms of cocoa and 100 gm brown sugar in a bowl, making sure there are no lumps. Sprinkle over the top. Pour rum and boiling water over the pudding and bake for 30 minutes until the top has set into a bubbly sponge and the underneath is gooey and liquidy.

(Feel free to substitute very finely chopped Chipotle for the chilli powder, I'm sure Nigella would approve)