Put the veal cutlets side by side on a sheet of plastic wrap. Lay a piece of prosciutto on top of each piece of veal and cover with another piece of plastic. Gently flatten the cutlets with a rolling pin or meat mallet, until the pieces are about 1/4-inch thick and the prosciutto has adhered to the veal. Remove the plastic wrap and lay a couple of sage leaves in the center of each cutlet. Weave a toothpick in and out of the veal to secure the prosciutto and sage. Put some flour in a shallow platter and season with a fair amount of salt and pepper; mix with a fork to combine. Dredge the veal in the seasoned flour, shaking off the excess.

Heat the oil and 1 tablespoon of the butter and in a large skillet over medium flame. Put the veal in the pan, prosciutto-side down first. Cook for 3 minutes to crisp it up and then flip the veal over and saute the other side for 2 minutes, until golden. Transfer the saltimbocca to a serving platter, remove the toothpicks, and keep warm.

Add the wine to the pan, stirring to bring up all the delicious flavor in the bottom; let the wine cook down for a minute to burn off some of the alcohol. Add the chicken broth and remaining tablespoon of butter, swirl the pan around. Season with salt and pepper. Pour the sauce over the saltimbocca, garnish with sage leaves and lemon wedges; serve immediately.