Garnishes put the wow into a dish.  This one is fast and simple.

 

Cut green part of scallion into three to four inch sections.  Slice narrow and long ribbons with a sharp paring knife.

Separate scallion pieces into thinnest slivers possible using knife or by hand.

Drop the green onion slivers into ice water and submerge completely for at least 20 minutes or refrigerate overnight.

 

 

Voila!