01 - Combine sugar and water in a small saucepan. Heat over medium heat, stirring constantly until sugar completely dissolves, approximately 2-3 minutes. Remove from heat and allow syrup to cool to room temperature before proceeding.
02 - Add strawberries, cooled syrup, lemon juice, and lemon zest (if using) to a blender. Process on high speed until completely smooth and no fruit chunks remain, approximately 1-2 minutes.
03 - Pour blended mixture through a fine mesh sieve into a clean bowl, using a spatula to press liquid through and discard seeds. This step is optional but recommended for smoother texture.
04 - Transfer strained mixture to an ice cream maker. Churn according to manufacturer's instructions for 20-25 minutes until mixture thickens to a slushy consistency with soft peaks forming.
05 - Scoop churned sorbet into a freezer-safe container, smoothing top with spatula. Cover tightly and freeze for minimum 4 hours or until firm enough to hold shape when scooped.
06 - Remove sorbet from freezer 5 minutes before serving to allow slight softening. Scoop into chilled bowls or cones and garnish with fresh mint leaves if desired.