Place the mashed banana in a large bowl, add the oil, eggs, sugar and vanilla and stir to combine. Add the flour, baking powder and cinnamon and stir to combine.
Pour into a 25cm x 10cm lightly greased and lined loaf tin. Slice the extra banana in half and place cut side up on top of the mixture. Bake for 1 hour. Brush the top with maple syrup.
Cool in the tin before turning out.
Notes
Serving Suggestion: The banana bread can be served with whipped ricotta and extra maple syrup as a lovely brunch or a perfect lunchbox treat.