Combine ingredients: Shake vodka, lime juice, and simple syrup with ice in a shaker.
Strain and pour: Strain into the prepared glass.
Top and stir: Add soda water and gently stir to combine.
Garnish: Add a watermelon wedge and a mint sprig for a vibrant, summery finish.
Notes
Sweetness Adjustments: Add more or less simple syrup to suit your taste.Mocktail Option: Substitute the vodka with watermelon juice and add extra soda water for a non-alcoholic refresher.Serving Tip: For extra cooling, freeze watermelon chunks and use them as ice cubes.