Place strawberries in a medium pot, add sugar, and lemon juice

Mash the berries (if they are too hard, wait to mash them)

Bring mixture to a boil over high heat and every so often mash the berries with the masher.

Once it’s boiling and you’ve mashed the berries, turn the down to medium high and add the corn starch slurry (corn starch plus water).

It will begin to thicken quickly, so do not take your eye off it.

Let cook for 5-6 min continuing to stir every minute or so.

Pour into a large bowl and let cool for 30-45 min at room temperature