1
Select and pre-chill an OLD-FASHIONED GLASS.
2
Prepare garnish of orange zest twist.
3
STIR half the rum with two ice cubes in a chilled glass.
4
Add PX sherry, sugar syrup, bitters, and two more ice cubes.
5
STIR some more and add another two ice cubes and the rest of the rum.
6
STIR some more and add more ice.
7
EXPRESS orange zest twist over the cocktail and use as garnish.