Place the meat on a board and use a meat mallet to flatten out the meat to a thickness of around 1 to 1.5 cm.
Season the meat with salt and pepper, then evenly distribute the pasta sprinkle, if using, or finely chopped herbs over the pieces of meat.
Cut the prosciutto to fit the piece of meat, then secure it with a toothpick.
Place a large frypan over medium-high heat and add the oil. When hot, add the sage leaves and capers and allow them to sizzle and infuse the oil for a minute or so.
Next, add the meat to the pan, prosciutto side down, and cook for a few minutes or until the prosciutto is golden and the meat is cooked halfway through. Turn the meat over and cook on the other side for a couple of minutes or until nearly cooked through.
Add the verjuice or white wine to the pan and simmer to evaporate the alcohol, then add the chicken stock and simmer for a couple of minutes. When the meat is cooked remove it from the pan and transfer it to a warm serving plate.
Add the butter to the pan and simmer for a minute or so. Taste the sauce and adjust it to suit your palette. Pour the sauce over the meat.
Serve with steamed greens and potatoes (either steamed or roasted).