Combine oats, flour, and sugar. In a separate bowl, add the golden syrup, boiling water and bi-carb soda and mix together. Mix the butter mixture and then pour into the oats bowl and combine.
For chewy ANZACS, bake for 10 to 12 minutes or until light golden. For crunchy ANZACS, increase cooking time to 12-15 minutes at 160 degrees celcius.