Pour vodka, peach nectar, lemon juice, and simple syrup into the shaker.
Shake vigorously for 10-15 seconds until well chilled.
Fill a highball glass with fresh ice cubes.
Strain the mixture into the glass.
Top with a splash of club soda and stir gently.
Garnish with a fresh peach slice and mint sprig.
Notes
Store peach nectar in the fridge after opening. It stays fresh for 5-7 days.Make simple syrup by mixing equal parts sugar and hot water until dissolved. Let cool before using.For a stronger peach flavor, muddle fresh peach slices in the shaker before adding other ingredients.This recipe makes one serving. Double or triple the amounts to make a pitcher for parties.