Every Christmas, Grandma would bake her rich and delicious Boterkoek. It was stored in a covered "tin" and was hidden high on a top cupboard shelf, well out of the reach of little hands.
On Christmas Eve, the grandchildren were allowed to select one piece of Koek (as the children called it) from the tin (under Grandma's watchful eye). It was both crisp and dense, crunchy and sweet, and unbelievably rich.
To this day, the smell of a rich butter cookie evokes memories of Christmas and of Grandma's special treat - Boterkoek.