Adding the vanilla bean is optional. If you are adding it, slide a knife along the outside of the vanilla bean to reveal the centre, then gently scrape out the centre of the bean. Set aside.
Using a mixer, cream together the butter, icing sugar and vanilla bean, until fluffy.
Add flour, then beat for 10 minutes.
At this point you will have to scrape your bowl often to make sure all the ingredients are being whipped.
When the batter is ready, it should be white and fluffy.
Drop by the tablespoonful onto a parchment paper lined cookie sheet.
Bake for 10 minutes, careful not to let them brown.