Whisk the eggs vigorously,add the brown sugar and whisk together till the mix has doubled in size and sugar well absorbed..

Add butter to the mixture once whisking has been achieved, keep stirring in one direction, once mixture is smooth and thick..

Fold in half of your flour with a spoon, pour in the mashed bananas with cinnamon

Fold in until you have a thick smooth running texture..

Note: flour and raising agents (bicarbonate of soda & baking powder) should be mixed together in a dry bowl before add flour to the cake mixture