The bun is traditionally dunked in the cooking broth before serving, so the sandwich arrives already dripping.
Lampredotto is made from the cow's fourth stomach, simmered for hours in a broth of tomato, onion, celery, and parsley until tender, then chopped and piled into a crusty roll. Florence's trippai — tripe carts that have worked the city's markets for generations — top it with a sharp green salsa verde or a spicy chili sauce and serve it standing up at the cart.
Arancini (Fried Rice Balls)