Five-spice powder turns the classic whiskey sour into something special.
Combine water and sugar in a small microwave-safe bowl; microwave at high for 20 seconds or until sugar dissolves. Stir in five-spice powder; cool to room temperature.
Place sugar syrup, lemon juice, and bourbon in a cocktail shaker filled with ice; shake mixture for 10 seconds. Strain into 2 glasses filled with ice. Garnish each drink, if desired.