In a small saucepan, combine the water and sugar. Heat over medium, stirring until the sugar dissolves completely to make a simple syrup. Once dissolved, remove from heat and allow to cool.
While the syrup is cooling, wash the raspberries and place them in a blender along with the lemon juice, lemon zest, and a pinch of salt. Blend until completely smooth.
Strain the raspberry mixture through a fine mesh sieve to remove the seeds. This step is optional but recommended for a smoother texture.
Once the simple syrup is cool, mix it into the strained raspberry mixture until well combined.
Pour the mixture into a shallow dish and place it in the freezer.
Stir every 30 minutes with a fork for about 3-4 hours, or until the sorbet is frozen and fluffy.
When ready to serve, let the sorbet sit at room temperature for about 5 minutes before scooping.
Notes
Serve the sorbet in chilled bowls or glasses, garnished with fresh raspberries and a sprig of mint for a pop of color.