Mustard Peppercorn Flank Steak

A tender sirloin steak would also be a great choice for this quick and tasty dish. From woman's world, april 24 2007.

Combine peppercorns , salt and rosemary.

Rub both sides of steak with peppercorn mixture.

In large nonstick skillet , melt 1 tbsp butter over medium heat.

Add steak.

Cook until browned , about 7 minutes.

Turn.

Add onions to pan around steak.

Cook until meat and onions are browned , about 7 minutes.

Tranfer meat to platter.

To onions in skillet , add 1 / 3 cup water , vinegar and mustard.

Cook over medium heat , scraping up any brown bits.

Bring just to boil.

Cook , stirring occasionally , until slightly thickened.

Stir in remaining butter.

Pour over steak.

peppercorns, salt, dried rosemary, flank steaks, butter, onion, balsamic vinegar, whole grain mustard