Muddle the orange peel with the simple syrup in an Old Fashioned glass. Add the bourbon and bitters and stir, then add a large chunk of ice and stir to chill. Twist a lemon peel over the drink to express the citrus oils and discard.
Story: Imbibe; Recipe from Bar Mash (@barmashchs), Charleston, South Carolina; Photo by Olivia Rae James