Run oats in mixer and make a fine powder.

Add whole wheat flour and brown sugar and mix well.

Add in cubed cold butter and rub until it makes a soft dough.

Finally add the 50 gm oats and chocolate chips and mix well.

Cover and refrigerate until firm.

Preheat oven to 180°C.

Make small balls out of the dough, press to form a cookie and arrange on a greased baking tray.

Bake for 15 - 20 minutes or until golden in the preheated oven.