1 (2 1/2 lb.) sirloin steak, 1 1/2" thick
1/2 cup butter or margarine
1/4 cup chopped fresh parsley or 
4 tsp. dried parsley
1/4 cup minced onion
2 tbsp. Worcestershire sauce
1 tsp. freshly ground pepper
1/2 tsp. dry mustard

Serves 6

Recipe from Easy Everyday Cooking
 

Lightly score edges of steak at 1" intervals.  Preheat grill or broiler.

Combine butter, parsley, onion, Worcestershire sauce, pepper and mustard in a small saucepan.  Heat, stirring continually, over low heat, until butter melts.  Reserve 1/4 of the mixture.

Place steak on grill or broiler pan.  Brush steak with butter mixture.  Cook, basting frequently with butter mixture, about 6 min. per side for medium.

Place steak on a serving platter.  Cut thin slices across the grain.  Drizzle reserved butter mixture over steak.

Tip:
Sprinkle fresh herbs on hot coals while grilling to enhance the flavor of the meat.