01 - Combine sugar and water in a small saucepan. Heat over medium heat, stirring constantly until sugar completely dissolves. Remove from heat, add mint leaves, and steep for 10 minutes. Strain out mint leaves and discard. Allow syrup to cool completely before proceeding.
02 - Place strawberries, lemon zest, lemon juice, and cooled mint syrup in a blender or food processor. Blend until completely smooth and no fruit chunks remain.
03 - Taste the purée and add more sugar or lemon juice if needed to achieve desired balance of sweetness and tartness.
04 - Pour mixture into ice cream maker and churn according to manufacturer's instructions until it reaches firm, scoopable consistency, approximately 20–25 minutes.
05 - If no ice cream maker is available, pour mixture into a shallow freezer-safe dish. Freeze for 4–6 hours, stirring vigorously every 30–45 minutes to break up ice crystals until smooth.
06 - Transfer sorbet to an airtight container and freeze for at least 2 hours until firm enough to scoop.
07 - Scoop into chilled bowls or cones. Garnish with fresh mint leaves and serve immediately.