The rum Cosmo!
The new classic was created by Tony Abu-Gamin in 1996 for San Fransisco’s famed Startlight Room. It is a variant of the sidecar.
This cool treat is made with cachaca, a Brazilian spirit that is similar to white rum. It unmatured and quite powerful. Cachaca is also used to make the famous Caipirinha. If you can’t get cachaca, you can substitute white rum.