The whiskey sour is a mixed drink containing whiskey, lemon juice, sugar, and optionally, a dash of egg white. With the egg white, it is sometimes called a Boston Sour.
1 oz (2 parts) Fresh Lemon Juice
1/2 oz (1 part) Gomme Syrup
1 dash egg white
1 1/2 oz (3 parts) Bourbon Whiskey
Shake with ice. Strain into ice-filled old-fashioned glass to serve "on the rocks." Garnish with Maraschino cherry, Lemon rind, Sugared glass, Orange slice