Preparation: Gather ingredients, reserve ½ cup water, and combine strawberries, remaining water, sugar, and lemon juice in a pot.
Cooking: Boil the mixture, then simmer for 5 minutes.
Blending: Off heat, blend the strawberries until smooth.
Reheat: Bring the blended mixture to a boil again.
Starch Slurry: Mix reserved water with starch, ensuring no lumps.
Thickening: On low heat, stir in the starch slurry into the pot until thickened.
Flavor Adjust: Taste and adjust with sugar or lemon juice as needed.
Serving: Pour into dishes and serve either hot or cooled.