Prepare the bananas: Peel and mash the bananas in a large bowl until smooth. The riper the bananas, the sweeter your bread will be, allowing for a delicious, sugar-free loaf.
Combine wet ingredients: Add the egg and melted coconut oil to the mashed bananas and stir well to combine.
Mix dry ingredients: In a separate bowl, combine the flour, cinnamon, baking powder, and baking soda. Gently fold the dry ingredients into the banana mixture until just combined – avoid over-mixing.
Fold in the nuts: Add in the nuts and gently fold into the batter.
Prepare to bake: Preheat the oven to 180°C (350°F). Line a loaf pan with baking paper and spray with cooking oil. Pour the batter into the pan and spread evenly.
Bake: Bake for about 1 hour and 10 minutes. Cover with aluminium foil for 55 minutes to prevent over-browning, and remove it for the last 20 minutes for a crisp top. Rotate the pan after 30 minutes for even baking.
Cool and store: Let the banana bread cool in the pan before slicing. Store in an airtight container in the fridge for up to 4 days or freeze for up to a month.