steamed banana cake

Min loves doing this... mashing the bananas!

Ingredients
> 500g ripen bananas ('pisang berangan')
> 250g 125g castor sugar 
> 250g low protein flour (sieved) 
> 2 tsp baking soda 
> 2 tsp baking powder
>  1  1/2 tsp cinnamon powder (optional) 
> 1 tsp banana essence
> 150ml less than 70ml corn oil 


Method
[1]  Mash bananas in a big bowl.
[2]  Add in baking soda, mix well and leave aside for 1 hour to leaven.
[3]  Add in castor sugar and stir a little.
[4]  Add in other ingredients (low protein flour, baking powder, cinnamon powder, banana essence).
[5]  Mix well and leave aside for another 1 hour.
[6]  Lastly add in corn oil.  Fold well and rest for 10 minutes.
[7]  Spoon into small moulds lined with paper cups.
[8]  Steam cake for 15 minutes.

For this cake (8" square), steaming time is about 45 minutes