William Porter
STIR all ingredients with ice and strain into chilled glass.
[['6 cl', "Dewar's 12 Year Old Scotch whisky"], ['1.5 cl', 'Martini Rosso sweet vermouth'], ['0.75 cl', 'De Kuyper Triple Sec (40%)'], ['0.5 cl', 'Lime juice (freshly squeezed)'], ['1 dash', 'Orange Bitters by Angostura']]
[['6 cl', 'scotch whisky'], ['1.5 cl', 'red vermouth'], ['0.75 cl', 'triple sec'], ['0.5 cl', 'lime juice'], ['1 dash', 'angostura']]