For 4 servings:
- 4 cups cubed seedless watermelon
- 1 cup vodka
- 1/4 cup fresh mint leaves
- 2 tablespoons lime juice
- 2 cups club soda
- 1/4 cup simple syrup optional
- Ice cubes
- Watermelon wedges and mint sprigs for garnish
Choose a ripe, sweet watermelon for the best flavor. You can make simple syrup by heating equal parts sugar and water until dissolved.