Add peach slices and simple syrup to the shaker. Muddle until peaches release their juice.
Pour in bourbon and lemon juice. Then, fill the shaker with ice.
After that, shake vigorously for 15 seconds to chill and combine ingredients.
Strain the mixture into a Collins glass filled with fresh ice.
Next, top with club soda and stir gently with a bar spoon.
Finally, garnish with a fresh peach slice and mint sprig.
Notes
Fresh peaches work best, but frozen can substitute when out of season.Make simple syrup by mixing equal parts sugar and hot water until dissolved.Strain twice to remove peach pulp for a smoother texture.