In a stew pot, heat up the extra-virgin olive oil. Once the oil is hot, add the beef, onions and garlic. Sear for about 2 minutes, stirring frequently. Add all of the wine. It should be enough to cover the beef. Season with salt and whole peppercorns.
Bring the wine to a boil. Lower the heat and allow it to gently simmer for approximately 2 hours.