He is a dutch version of Santa Clause but taller and slim.
Sinterklaas is assisted by many mischievous helpers with black faces and colourful Moorish dresses. These helpers are called 'Zwarte Pieten' (Black Petes). During the Middle-ages Zwarte Piet was a name for the devil. Having triumphed over evil, it was said that on Saint Nicholas eve the devil was shackled and made his slave. Although the character of Black Pete later came to acquire racial connotations, his origins were in the devil figure.
Zwarte Pieten are giving away candies and pepernoten to kids and adults.
There's my big boy Pieter.
Back to my macarons. These are unfilled shells. Actually I made a macaron template which is the same size as ferrero rocher chocolate but after piping, the batter spread out and became too big for the holes. That is why I left them unfilled because if I do so it won't fit in the holes anymore.