Pre-heat oven to 275⁰C and prepare a baking tin. In a small bowl, mix mashed bananas with bicarbonate of soda and set aside. In a medium bowl - mix flour, baking powder, and set aside.
In a large bowl, cream the banana mixture with sugar until light and fluffy. Add liquid oil and continue mixing for a while. Beat in eggs one at a time. Beat in the flour mixture alternatively with the milk.
Pour the content in to prepared pan and bake in preheated oven for one hour or until toothpick inserted in center comes out clean.
Remove from oven and place directly into the freezer for 45 minutes. This will make the cake very moist.
Finally invert it on a dish, portion and serve it accordingly.
N/BBanana cake can be served as a desert or an accompaniment for tea/coffee.