Travel Editor Tip No.5: Only trust cooks who eat their own food.

Vietnam, with its capacious cuisine, isn’t really where one seeks a “gusto Italiano” experience but this pizzeria ristorante La Cala – hidden up a little hem (lane) off a main street in Nha Trang – is a treat to discover, with its freshly baked sourdough loaves and a wine collection to envy.

And, yes, the kitchen staff can attest that the proof of the pizza is in the tasting …