Sieve flour and cornflour and mix to combine to form a soft dough
STEP 4
Wrap in cling film and refrigerate to rest for approximately 20 minutes
STEP 5
Roll out onto a floured work surface to the thickness of two pound coins stacked on top of each other. Using pastry cutters cut out biscuits and place onto a lined baking tray with a palette knife.
STEP 6
Bake for approximately 60 minutes until very pale brown, Dredge with caster sugar as soon as it comes out of the oven, then leave to cool.