Ingredients: 
1 (2-pound) flank steak 
2 tablespoons cracked black peppercorns, divided use
2 tablespoons chopped fresh flat-leaf parsley 
3 cloves garlic, thinly sliced 
2 teaspoons chopped fresh rosemary 
1/2 cup dry red wine 
1/4 cup soy sauce 
3 tablespoons butter 
1 pound crimini or white button mushrooms, sliced 
5 shallots, peeled and chopped 
3/4 teaspoon salt, divided use
1 cup beef broth