We discovered the use of rum in place of cognac in a Vieux Carré thanks to a comment by Collin Westgate on our Vieux Carré page saying that he'd discovered...
Made this with a 5 year Plantation Rum. Very balanced and different. It’s like a Manhattan on an island. Will make again with a darker stronger rum to see what that’s like. This is great cocktail to play with different rims and whiskeys!