Scrub the clams thoroughly with a brush in running water.
At least about 2-4 hours before grilling, de-grit clams
to purge the sand (Read How To De-Grit Clams).
Start the grill. Meanwhile prepare the rest of ingredients. Chop green onions,
cut butter into small cubes, and combine the seasonings in a small bowl.
When grill is hot, place the clams on it. When the clams are fully opened,
after about 5 minutes, pour the Seasonings and put green onion and butter on the
clams and cook until boiling. Carefully remove them from the grill. Try not to spill their juices.