Wet ingredients:
2 tbsp softened butter
2 overripe bananas, mashed
1 cup sour cream
1/2 cup raw sugar
Combine these wet ingredients until smooth and even.
Dry ingredients:
2 cups plain flour
3/4 tsp salt
1/2 tsp bicarbonate of soda
1/2 tsp baking powder
3/4 tsp ground cinnamon
Stir the dry ingredients into the wet mixture just until combined; avoid overmixing to keep the loaf tender.
Transfer the batter to a lined loaf pan. Bake in a preheated oven at 160°C (320°F) for about 50 minutes, or until a skewer inserted in the centre comes out clean. Allow the loaf to cool in the pan briefly, then remove to a rack to cool completely.
Wrap individual slices for freezing if you wish to store them for later.
For a bright finish, make a simple lemon icing by mixing icing sugar with enough lemon juice to create a smooth, slightly runny paste. Drizzle over the cooled loaf and sprinkle with desiccated coconut for texture and contrast.