A Cognac sour with orange liqueur and lemon, classically sugar-rimmed.
Serve in Coupe·Garnish: Orange twist
Sugar the rim of a chilled coupe if desired.
Combine Cognac, Cointreau, and lemon juice in a shaker with ice.
Shake until chilled.
Double strain into the prepared glass.
Garnish with an orange twist.
Add rum to the Cognac base.