Preheat oven to 350°F. Line a large baking pan with parchment paper or lightly grease with cooking spray. Set aside.
In a large bowl, beat the butter and sugars together with an electric hand mixer until smooth and creamy. Add vanilla and egg and beat until just combined.
Add the flour, baking soda, and salt. Mix together until a crumbly mixture forms.
Add in diced strawberries and white chocolate, reserving a few for the tops of the cookies (if desired).
Scoop dough with a 2-inch cookie scoop and place about two inches apart on prepared baking pans. Top each cookie with reserved strawberries and white chocolate (if desired).