Preheat oven to 160 degrees Celsius. Line two large cookies sheets with baking paper and set aside
Beat the butter and sugar until creamy. Mix in the golden syrup and vanilla essence. Sift in the cocoa.
Mix in the coconut and add the flour, little bits at a time until you form a soft dough. Add the 2 tablespoons of flour or more only if required. Dough needs to be just soft enough to be rolled out
Divide the dough in halves. Roll one half out about 3mm thickness. Scrape the dough with a fork from top to bottom. Cut the dough into circles,3.5cm in diameter. Press the edges in a little to create an oval shape, if you wish
Place the biscuits, a little apart, on the cookie sheets and bake at 160 degrees Celsius for 17 minutes
Cool them on a wire rack. Melt 1/3 of the chocolate in a small bowl, in the microwave at 20 second increments. Doesn't have to be completely melted. Mix it all together.
Wait for the chocolate to cool slightly. Sandwich the biscuits with the chocolate
Store in an airtight container