Preheat oven to 160 degrees celsius (fan-forced). Grease and line two flat baking trays with baking paper.
Place the butter, golden syrup and water into the Thermomix bowl and heat for 3 minutes, 80 degrees, Speed 2.
Add the bicarbonate of soda and mix for 5 seconds, Speed 3. Scrape down the sides of the bowl.
Add the rolled oats, raw sugar and plain flour to the Thermomix bowl. Mix for 10 seconds, REVERSE, Speed 3. Scrape down the sides of the bowl.
Add the chocolate chips and mix for 5 seconds, REVERSE, Speed 3.
Roll teaspoonful sized amounts of mixture into balls. Place on trays, 5cm apart.
Bake for 15 minutes or until lightly golden.
Allow to cool on the baking trays for 10 minutes before transferring to a wire rack to cool completely. Note: the biscuits will firm on cooling.