The creator of this cocktail, Sam Ross, has described it as “a love child between a Negroni and a Manhattan.” Essentially a Boulevardier using bourbon instead of Irish whiskey and with different proportions and the addition of chocolate bitters.
Half-fill a mixing jug with ice.
Add all ingredients and stir until well-chilled.
Strain into a chilled cocktail coupe.
Garnish with a skewered maraschino cherry.