Vitello Tonnato (Veal in Tuna Sauce)

Usually today, vitello tonnato takes the form of dry slices of veal accompanied by a tuna mayonnaise. The original, as here, called for marinating the veal slices in the tuna sauce. Serve with salad and bread.

2 pounds (1 kilo) boneless veal, eye of loin or another tender cut that yields neat slices

a short inner celery stalk with leaves

several branches o…