Pour ingredients into a cocktail shaker, fill with ice and shake for 10 seconds. If using the egg white, give it a little extra muscle and a little extra time.
Strain into a chilled cocktail glass, or into an ice-filled Old Fashioned glass.
You'll notice a nice light foam on the top if you use egg white. This is perfect.
Garnish with a cherry, a slice of orange, or nothing at all.
