01 - Remove steaks from refrigerator 30 minutes before cooking to reach room temperature and pat dry with paper towels.
02 - Generously season both sides of 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 steaks for 3 to 4 minutes per side for medium-rare, or until desired doneness is reached. Transfer steaks 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 - Add crushed peppercorns and stir for 30 seconds until aromatic.
06 - Carefully add brandy or cognac, allowing it to sizzle and reduce by half while scraping browned bits from the pan.
07 - Pour in beef broth and simmer for 2 minutes. Add heavy cream and cook, stirring, until sauce slightly thickens, about 3 to 5 minutes. Season with salt to taste.
08 - Return steaks and any resting juices to the pan, spoon sauce over them, and warm through for 1 to 2 minutes. Serve on warmed plates with generous sauce drizzle.