I by pass the sugar cube and modernize the classic old fashioned by incorporating mango essence into a simple syrup. The taste is just as exquisite as the classic version if not better.
This is one of my favorite classic drinks in which to impart mango essence. The slight sweetness and perfumed nose the mango conveys in this drink tames the whiskey, just slightly. The egg white is really not optional in my opinion as the sweet mango froth that is born here communicates both flavor and texture to the drinker.