Preheat The Broiler. Using A Pastry Brush, Paint Each Mushroom Cap With Melted Butter. Arrange The Caps Side By Side And Hollow Side Up In A Well- Buttered, Shallow Baking Dish. Season Them Lightly With Salt And Pepper And Broil Them 6" From The Heat For 5 Minutes. Gently Turn The Caps Over And Broil Them For Another 5 Minutes, Or Until They Are Lightly Browned And Tender When Pierced With The Tip Of A Sharp Knife.