Build
3/4 oz fresh lime juice (2 cl, 3/16 gills)
1 1/2 oz dark rum (4.5 cl, 3/8 gills)
1 dash Angostura bitters
1/2 tsp sugar (2 dashes)
Squeeze 1/2 lime in glass, place shell in glass (1 1/2 oz, 4.5 cl, 3/8 gills)
Several mint sprigs
Fill with crushed ice
Swizzle until glass frosts
Add mint sprigs
Serve in a highball glass (9.0 oz)
