Mattias's Port Old-Fashioned
Orange zest twist
STIR all ingredients with ice and strain into ice-filled glass.
[['4.5 cl', 'Bourbon whiskey'], ['2 cl', 'Ruby port'], ['0.5 cl', 'Maple syrup'], ['2 dash', 'Angostura or other aromatic bitters']]
[['4.5 cl', 'bourbon whiskey'], ['2 cl', 'ruby port'], ['0.5 cl', 'maple syrup'], ['2 dash', 'angostura']]