01 - Combine sugar and water in a small saucepan over medium heat. Stir constantly until sugar completely dissolves, approximately 2-3 minutes. Remove from heat immediately, add fresh mint leaves, and allow to steep for 10 minutes. Strain syrup through a fine-mesh sieve, discarding the mint leaves.
02 - Place raspberries, lemon juice, lemon zest, and mint-infused syrup into a blender or food processor. Process on high speed until completely smooth and uniformly combined.
03 - Pour blended mixture through a fine-mesh sieve positioned over a clean bowl. Press firmly with a spatula or spoon to extract maximum liquid while removing raspberry seeds for a silky texture.
04 - Stir in vodka if using, as this prevents the sorbet from freezing rock-hard and maintains scoopable consistency.
05 - Transfer mixture to a shallow, freezer-safe container. Place in freezer for approximately 4 hours. Every hour, remove and stir vigorously with a fork to break up ice crystals until firm and scoopable.
06 - Scoop chilled sorbet into serving bowls or dessert glasses. Garnish with fresh mint leaves for a vibrant presentation. Serve immediately for optimal texture.