Wash, hull, slice strawberries.
Add strawberries & sugar in blender.
Purée until smooth.
In small bowl, add lime juice & corn starch.
Whisk until smooth.
Add lime juice/ cornstarch mixture to puréed strawberries in blender and purée until smooth. (At this point you can strain the mixture to remove seeds, I chose not to do this step.)
Pour back into saucepan and cook over medium heat until mixture starts to boil.
Stir frequently, and cook a few more minutes or until it thickens.
Pour into heatproof containers. Let cool to room temperature, then store in refrigerator.