Rinse and hull the strawberries, then slice them into halves or quarters.
In a medium saucepan, combine the sliced strawberries, sugar, and salt.
Heat the mixture over medium heat, stirring gently.
Allow the strawberries to release their juices, about 5 minutes.
Once the mixture starts to bubble, reduce heat to low.
Add the lemon juice and stir well.
Simmer for 10 minutes, allowing the sauce to thicken.
Remove from heat and let cool slightly.
For a smoother sauce, blend the mixture using an immersion blender.
Cool completely and store in a jar in the refrigerator.