Preheat your oven to 350°F (175°C).
In a large bowl, cream together the softened butter and granulated sugar until light and fluffy.
Add the egg and vanilla extract to the butter-sugar mixture, then beat until well combined.
In a separate bowl, whisk together the flour, baking soda, and salt.
Gradually add the dry ingredients to the wet mixture, mixing until just combined.
Fold in the chopped strawberries gently.
Scoop tablespoon-sized balls of dough onto a baking sheet lined with parchment paper.
Bake in the preheated oven for 10-12 minutes, or until the edges are lightly golden.
Allow cookies to cool on the baking sheet for 5 minutes before transferring to a wire rack.