Combine mustard, parsley, honey, vinegar, water, pepper sauce and pepper. Place beef top loin steaks and onions on grid over medium coals; brush both sides liberally with glaze. Grill steaks and onions 15 to 20 minutes for rare 140F to medium 160F or to desired doneness, turning once and again brushing with glaze.
Beef top loin steaks will yield 3-1/2 (3 oz.) cooked trimmed servings per pound.
* Recipe may also be prepared using 1 pound well trimmed boneless beef sirloin steak cut 1 inch thick.
Boneless beef top loin steaks and onions may also be cooked in covered cooker (direct method), turning once and brushing with glaze.
Cajun Country -- New Iberia, Louisiana