01 - Combine sugar and water in a small saucepan. Heat over medium heat, stirring continuously until sugar completely dissolves. Remove from heat and allow syrup to cool to room temperature.
02 - In a large mixing bowl, whisk together cooled syrup, fresh lemon juice, grated lemon zest, and sea salt until fully incorporated.
03 - Transfer mixture to ice cream maker and churn according to manufacturer instructions, approximately 20-25 minutes, until mixture reaches thick, slushy consistency.
04 - Pour churned sorbet into shallow freezer-safe container. Cover tightly and freeze for minimum 4 hours or until firm enough to scoop.
05 - Scoop sorbet into chilled bowls or dessert glasses. Top each serving with fresh mint leaves immediately before serving.