Pre-heat the oven to 200˚C/180˚C fan/gas mark 6.
Place the banana and brown sugar in a large bowl, beat for 1-2 minutes until creamed together.
Add baking powder and Fate low protein all-purpose mix to the mixture.
In a separate bowladdand mix cold water, ProZero and vanilla essence. Add to mixture, beat until a soft smooth batter is formed.
Divide mixture into 4 muffin cases.
Bake in oven for 15 to 20 minutes until golden brown.
Allow to cool and enjoy.