Rinse the strawberries under cold water and pat dry.
Hull and slice the strawberries into halves.
In a medium saucepan, combine the strawberries, sugar, and a pinch of salt.
Heat the mixture over medium heat, stirring gently until the sugar dissolves.
Once the strawberries start to release their juices, add lemon juice.
Bring the mixture to a simmer, then reduce heat to low.
Cook for about 10-15 minutes, stirring occasionally.
Use a fork or potato masher to mash the strawberries to your desired consistency.
Remove from heat and stir in vanilla extract.
Allow the sauce to cool before serving or storing.