Cambio Corner – home to one of Turin's best restaurants, not to mention bars – also has this 'informal' but glamorous all-day space, set within an old pharmacy dating to 1833. Pop in for morning coffee or to pick up deli goods, but do come back for aperitivo, either beneath the dark shelves, by the theatrically open kitchen or out on the piazza.
Note, if you're in for coffee, their pastry selection is enthralling, and, if for aperitivo, it pays to book on Friday and Saturday nights.