Preheat the oven to 150°C.
Mix all ingredients in a food processor until smooth dough is formed.
Break the dough into walnut size pieces and roll into a ball.
Place on baking tray lined with baking parchment and flatten gently with two fingers.
Bake for 25-30mins until dark brown.
Remove from oven, leave on baking tray for five minutes so that biscuits can set, then transfer to wire tray to cool.
