Vieux Carre Cocktail

This cocktail originated in the Hotel Monteleone, New Orleans first invented by Walter Bergeron, a bartender at the bar in the hotel. This cocktail contains, rye whiskey, cognac, sweet vermouth, Bénédictine, and Peychaud's bitters and has complex herb notes. From a bygone era, this cocktail is dark, heavy and smooth.

Ingredients
3/4 ounce rye whiskey
3/4 ounce sweet vermouth
3/4 ounce cognac
2 dashes Peychaud's bitters
2 dashes Angostura bitters
1 splash (or a barspoon) Benedictine
2 lemon twist, for garnish