1 1/2 fluid ounces rye whiskey
1/2 fluid ounce cherry liqueur (such as Cherry Heering®)
1/2 fluid ounce kirschwasser
1 tablespoon mezcal
2 dashes chocolate or mole bitters (such as Bittermens® or Fee Brothers®)
maraschino cherries, for garnish
Put ice in a cocktail shaker. Pour in whiskey, Cherry Heering, and kirschwasser. Then spoon in the mezcal and add a couple dashes of bitters. Shake well and strain into a cocktail glass. Garnish with cherries.