Preheat oven to moderate 180°,grease a tin loaf

Combine the butter,1 cup sugar,egg,flour,coconut,banana and milk in a bowl and beat with electric beaters on low until well combined

Beat for couple of minutes,spoon mixture into the thin loaf

Bake for 1 hour or until a sweker comes out clean when inserted into the centre

You may need cover with foil during cooking if the top starts to brown to much