* Have your butcher provide you with 8 large thin slices of beef.
Lay the slices of beef flat on a worktable and put a slice of ham on each. Place 3 to 4 pieces chestnuts
on each slice of ham
, and season with salt and pepper. Roll up each slice of beef and secure with toothpicks.
Heat the extra-virgin olive oil in a large pan. Add the onion and the sprig of rosemary. Add the beef
on all sides. Add the wine
, and cook for a few minutes on medium heat. Season with salt.
Add the remaining chestnuts to the pan, breaking up some of them to thicken the sauce
. Let the sauce reduce. Remove the pan from the heat, and let rest for a few minutes with the lid on. Serve warm.