Ingredients

1/3 cup dry red wine or other liquid (such as white wine, Cognac, Armagnac, whiskey, vermouth, or vinegar) 

2 tablespoons unsalted butter or other thickener (such as heavy cream, creamy cheese, or mustard) 

Preparation

Once steaks are removed from skillet, return skillet to high heat. Add wine and simmer, scraping up browned bits from bottom of skillet, until reduced slightly.

Swirl in butter and simmer 1 minute more. To serve, drizzle over steaks.