“Late Night Study” 2 parts Cinzano Extra Dry Vermouth (chilled)
2 parts Fentimans Tonic Water (chilled)
Dash of Chateau St Jean Blood Orange Vinegar
3 dashes Peychaud’s Bitters

Build into Old Fashioned glass with large ice cube and give a gentle stir. A great way to help finish a long day of studies. – justcocktails.org