01 - Place cubed watermelon in blender and process until completely smooth.
02 - Pour puree through fine-mesh sieve into large bowl, pressing to extract juice and remove pulp for smoother texture.
03 - Add sugar, lime juice, and salt to watermelon juice. Stir continuously until sugar fully dissolves.
04 - Transfer mixture to shallow freezer-safe dish and place in freezer.
05 - After 30 minutes, remove from freezer and stir vigorously with fork to break up forming ice crystals.
06 - Continue stirring every 30 minutes for approximately 3 hours until sorbet reaches scoopable, fluffy consistency.
07 - Serve immediately for softer texture. For firmer consistency, freeze longer and let stand at room temperature 5 minutes before scooping.