Steak Diane

Found here: http://www.lifescript.com/food/healthy_recipes/recipe_collections/entrees/10_sizzling_steak_recipes/2.aspx
1 pound boneless strip steak, such as top loin or New York,
3/4 to 1 inch thick, trimmed and cut into 4 portions
1/4 teaspoon freshly ground pepper, plus more to taste
1/8 teaspoon salt
1 tablespoon extra-virgin olive oil
3 cups sliced mixed mushrooms, such as shiitake, oyster and cremini
1/2 cup brandy
1 15-ounce can reduced-sodium beef broth
1 teaspoon butter, softened
1 teaspoon all-purpose flour
2 teaspoons Dijon mustard
1 tablespoon chopped fresh chives

Preparation:
1 Season steaks on both sides with 1/4 teaspoon pepper and salt. Heat oil in a large skillet over medium-high heat. Reduce heat to medium, add the steaks and cook 3 to 5 minutes per side for medium. Transfer to a plate and tent with foil to keep warm.

2 Add mushrooms to the pan and cook, stirring, until golden brown and beginning to release their juices, about 3 minutes. Add brandy and cook, stirring, until almost evaporated, about 1 minute. Add broth, bring to a boil and cook until reduced by half, 8 to 10 minutes.

3 Meanwhile, combine butter and flour in a small bowl to form a paste. When the pan sauce is reduced by half, whisk in mustard, then gradually whisk in the butter-flour paste a few bits at a time and cook until the sauce thickens, about 1 minute. Reduce heat to medium-low. Return the steak to the pan along with any accumulated juices. Turn to coat with the sauce and cook until heated through, about 1 minute. Top the steak with the sauce and sprinkle with chives.

Note: I can't help it I just have to modify as I cook based on what's on hand. I often am cooking for one so  I start by reducing quantities  I was having this with baked potato so having more pan sauce made sense to me so I reduced by one half but kept the mustard, butter and flour the same to give a little more oomph.

6-8 oz chuck tender
steakhouse seasoning freshly ground
1 T extra-virgin olive oil
1 can sliced mushroom
1/4 cup brandy
8-ounce reduced-sodium beef broth
1 teaspoon butter, softened
1 teaspoon all-purpose flour
2 teaspoons stone ground mustard