The dough itself, freshly made and yeast-leavened; the sauce that lightly moistens it and adds an aromatic base; the cheeses that, singly or in combination, bring creamy and chewy richness with tangy, salty, or nutty notes; the other toppings, from vegetables to all kinds of freshly cooked or cured meats, poultry, or seafood; and other subtle yet important embellishments, such as fresh or dried he