Steamed Mussels

Ingredients	1/2 cup onion green onion celery stalk 1/2 stick butter 1/2 cup parsley 1/2 cup white wine pepper 2 pounds live mussels (about two dozen)
Recipe	Chop vegetables and half of parsley and cook in a big pot with half of butter for five minutes. Add wine, pepper, mussels. Raise head, cover, and shake. After about six minutes, remove the mussels and discard any with closed shells. Strain and reduce the liquid, adding the remainder of the butter and parsley, and serve over the mussels.