01 - Remove beef tenderloin steaks from the refrigerator 30 minutes prior to cooking and pat dry with paper towels.
02 - Generously season both sides of the steaks with salt and freshly ground black pepper.
03 - Heat olive oil and 1 tablespoon butter in a heavy skillet or cast-iron pan over medium-high heat. Sear the steaks 3 to 4 minutes per side for medium-rare or until desired doneness. Transfer to a plate, cover loosely with foil, and let rest.
04 - Reduce heat to medium. In the same pan, melt 2 tablespoons butter and sauté the minced shallot for 1 minute until softened.
05 - Stir in crushed peppercorns and cook for 30 seconds to release aroma.
06 - Carefully add brandy or cognac, allowing it to sizzle and reduce by half while scraping up browned bits from the pan.
07 - Pour in beef broth and simmer for 2 minutes. Add heavy cream and cook, stirring frequently, until sauce thickens slightly, approximately 3 to 5 minutes. Season with salt to taste.
08 - Return steaks and any accumulated juices to the pan. Spoon sauce over and warm through for 1 to 2 minutes.
09 - Place steaks on warm plates and generously drizzle with peppercorn sauce.