Combine 2 cups of granulated sugar and 2 cups of water. Heat over medium until the sugar fully dissolves, then allow it to cool.
Chop the strawberries and add them to a blender. Pour in 1 cup of simple syrup and blend until smooth.
For the Lemonade
In a pitcher, squeeze in fresh lemon juice, then add the strawberry puree and water. Mix everything together, taste and adjust the sweetness as desired.