Found this in an Esquire while waiting on a haircut. Went straight home and made one – after getting said hair cut. I used Buffalo Trace bourbon and Cointreau in place of the Grand Marnier and it was superb.
1.5 oz Evan Williams 2002 single barrel
1 oz Lillet blanc
1/2 oz. Grand Marnier
2 dashes Angostura
Stir over ice and serve with a garnish of lemon peel