Optimist
Charcoal rim & grapefruit zest twist (discarded)
SHAKE all ingredients with ice and fine strain into chilled glass.
[['5 cl', 'Bacardi Carta Blanca light rum'], ['3 cl', 'Fino sherry'], ['1.5 cl', 'Lime juice (freshly squeezed)'], ['2 cl', 'Sugar syrup (65.0°brix, 2 sugar to 1 water rich syrup)'], ['2 dash', "Peychaud's or other Creole-style bitters"]]
[['5 cl', 'white rum'], ['3 cl', 'fino sherry'], ['1.5 cl', 'lime juice'], ['2 cl', 'sugar syrup'], ['2 dash', "peychaud's bitter"]]