Muddle, stir with ice, and strain over one large cube into a chilled rocks glass. Garnish with a lemon twist.
In 1806, the word cocktail was defined in the Balance and Columbian Repository newspaper as "a stimulating liquor, composed of spirits of any kind, sugar, water, and bitters—it is vulgarly called a bittered sling. " By 1888, the cocktail as defined above was already old hat! —Theodore Proulx, The Bartender's Manual, 1888