Preheat the over to 180°C
In a bowl whisk up the butter and sugar until light fluffy.
Add eggs and vanilla and whisk until smooth and even.
Add the mushed or pureed bananas
Sift together the flour, salt, baking powder and soda and cinnamon and add slowly to the butter and egg mixture, alternating with milk 1 tbsp at a time.
Lastly, add the walnuts and make sure you have an even batter.
Butter and flour a bundt cake or a 23cm round cake pan and pour in the batter gently.
Bake for 50 mins to 1 hour, and let it cool down before enjoying.
To make the banana bread richer in flavour I like mixing brown sugar and white caster sugar to make up the required amount, usually half and half.
IMO, its better to use a bundt cake pan in order to have more crust, which I love.