Wash the strawberries thoroughly under cool running water. Remove the green stems. For fresh berries, freeze on a baking sheet for 2 hours until solid.

In a high-speed blender, combine the frozen strawberries, sugar, lemon juice, and optional salt. Blend until smooth and creamy, about 1-2 minutes.

If using an ice cream maker, pour the mixture into the pre-frozen bowl and churn for 20-30 minutes until thick and soft-serve consistency.

Serve immediately or transfer to an airtight container and freeze for firmer consistency. Let sit at room temperature for a few minutes before scooping.