Peel and chop 500 grams of ripe kiwi fruit into small pieces. Place the chopped kiwi in a blender or food processor.
Add 100 grams of granulated sugar and 2 tablespoons of lemon juice to the blender. Blend the mixture until it becomes smooth and the sugar is dissolved.
Pour the kiwi mixture into a shallow, freezer-safe container. Cover the container with a lid or plastic wrap and freeze for 2-3 hours.
After 2-3 hours, take the container out of the freezer and use a fork to break up any ice crystals that have formed. This will help create a smoother sorbet texture.
Return the container to the freezer and freeze for another 2-3 hours, or until the sorbet is firm.
Before serving, let the sorbet sit at room temperature for 5-10 minutes to soften slightly. Scoop the kiwi sorbet into serving bowls or glasses and enjoy!