Ban-hattan
Dehydrated banana slice pegged to rim
STIR all ingredients with ice and strain into chilled glass.
[['4.5 cl', 'Straight rye whiskey (100 proof / 50% alc./vol.)'], ['2.5 cl', 'Martini Rosso sweet vermouth'], ['0.75 cl', 'Banana (yellow) sugar syrup'], ['2 dash', 'Angostura Aromatic Bitters'], ['1 cl', 'Chilled water']]
[['4.5 cl', 'rye whiskey'], ['2.5 cl', 'red vermouth'], ['0.75 cl', 'banana  sugar syrup'], ['2 dash', 'angostura'], ['1 cl', 'chilled water']]