1 1⁄2 oz Bourbon, Maker's Mark
3⁄4 oz Sweet vermouth, Martini & Rossi (maybe Cinzano.)
3⁄4 oz Bénédictine
1⁄3 oz Averna
Instructions
Stir all ingredients with ice and strain into chilled cocktail glass. Add a orange zest twist and serve.
Notes
Some classic ingredients and a touch of italian bitter in that original creation. In my country (Argentina) Monacal Liquor replace Benedictine.