It is a truth universally acknowledged that a single espresso in possession of a good head of crema must be in want of a shot of grappa.  This shot of grappa “corrects” the espresso, resulting in an espresso corretto.  It is also a truth universally acknowledged that a single espresso in possession of a good scoop of ice cream (which combination is known as an affogato) must be in want of a shot of grappa. This “correction” brings forth an affogato corretto.  As a different writer, bearded and burley, might have observed, it’s a damn fine way to drink a damn fine espresso.