Sift together the flour, bicarb soda and salt, set aside. In a medium bowl cream the margarine with the brown sugar and white sugar. Stir in the eggs, coconut essence and milk. Then mix in the sifted dry ingredients. Finally, stir in the chocolate chips.
Drop biscuit dough from a spoon in golf ball sized portions onto an ungreased baking tray. Bake for 9 to 11 minutes in the preheated oven. Biscuits should be slightly brown at the edges. Allow biscuits to cool for a couple of minutes on the baking trays before removing to cool completely on wire racks.