Mario Batali's side car, a reference to the first Cosmos from way back. "The first recipes never called for fruity mixers. If you're served one with guava or anything other than brandy, leave the bar immediately!"
1 jigger V.S. Congac
1 jigger Cointreau
1 jigger fresh lemon juice
Add ingredients over ice, mix, strain into a sugar rimmed martini glass.