Preheat the oven to 170°C.
Mash the bananas with a fork, then add all the other ingredients and mix well.
Line a loaf tin with parchment paper or paper basket.
Tip the batter into the tin, spreading it out evenly.
Bake the cake tin in the middle of the oven and for approx. 60-80 minutes until golden and an inserted skewer comes out clean.
Let it cool in the tin for 5 minutes then transfer it to a wire rack.
Make the icing by combining the lime juice with icing sugar and desiccated coconut. Spread this over the cake and let is set before slicing it.
Let it completely, before serving.