Caffè corretto

Caffè corretto is an Italian caffeinated alcoholic drink, consisting of a shot of espresso with a small amount of liquor, usually grappa, and sometimes sambuca or brandy. It is also known (outside Italy) as an espresso corretto. It is ordered as un caffè corretto alla grappa, ... alla sambuca, ... al cognac, or corretto di Spadino, depending on the desired liquor. A caffè corretto is often prepared by simply adding a few drops of the desired spirit into an espresso shot; however in some cases the alcohol is served in a shot alongside the coffee, allowing the customer to pour the quantity they desire.

Source: Wikipedia