Preheat oven to 180 degrees celsius (160 if using fan forced).
Grease and line a standard sized slice tray (approximately 17X28cm) with baking paper.
Place the butter, golden syrup and brown sugar into the TM bowl.
Melt on for 3 minutes, 100 degrees, Speed 1.
Add the bicarbonate of soda to the melted butter mixture and combine mix for 10 seconds on Speed 3.
Add the rolled oats, plain flour and coconut.
Mix together for 40 seconds on Reverse, Speed 2.
Place the mixture into the tray and press down firmly.
Bake for approximately 25 minutes or until lightly golden brown.
Leave in the baking tray to cool for 10 minutes before transferring to a wire rack to cool completely.
When the slice has cooled completely, cut it into slices.