Prepare the strawberries: Wash, hull, and slice the strawberries into small pieces.
Combine ingredients: Add the strawberries, sugar, and water to a medium saucepan and stir to combine.
Dissolve the sugar: Place over medium heat and stir occasionally until the sugar has completely dissolved.
Bring to a simmer: Once the mixture begins to bubble gently, reduce the heat to low.
Cook the syrup: Simmer for 12–15 minutes, stirring occasionally, until the strawberries are very soft and the syrup develops a deep pink-red color.
Cool briefly: Remove from the heat and allow the mixture to rest for about 5 minutes.
Strain: Pour through a fine mesh sieve into a heat-safe bowl or measuring cup. Allow the syrup to drain naturally without pressing the berries.
Cool completely: Let the syrup cool fully before transferring it to a jar or bottle.
Store: Refrigerate until ready to use.