Makes one cocktail.
Muddle the chopped pear in a shaker, while adding lime juice and whisky. Wet the glass rim with water and roll in cinnamon sugar. Add 2-3 pieces of ice to the shaker and shake fiercely. Strain the mixture into the glass. Top with one dash of black walnut bitters and garnish with slice of pear.
**Simple Syrup: Combine 1 cup water and 1 cup granulated sugar to a pot over medium heat. Let sugar dissolve, stirring constantly. Once sugar has dissolved, remove from heat and let cool. Store for up to 2 weeks.