Preheat oven to 175C fan-forced and line a baking tray with baking paper.
Beat butter and castor sugar together until pale and creamy using an electric beater.
Add the vanilla extract/essence and egg and mix until well combined.
Remove bowl from mixer and add self-raising flour and coconut and mix well until combined, using a metal spoon.
Scoop one tablespoonful of mixture, squeeze firmly in the palm of your hand, roll into a ball, gently flatten the ball slightly between the two palms of your hands, dip one side in extra sugar and place on baking tray with the sugar side facing upwards. Repeat. Please Note: this biscuit dough can feel a little dry and crumbly. To help roll the dough into balls, dampen your hands slightly to make handling the dough a little easier.
Bake in oven for approximately 12 minutes. Once cooked remove from oven, allow biscuits to stay on tray for a couple of minutes then transfer to a wire rack to cool completely.
Biscuits can be stored in an air-tight container for up to one week and this recipe will make approximately 30 biscuits.
Recipe by Mrs Organised at http://www.mrsorganised.com.au/2015/10/08/coconut-biscuits/