Preheat oven to 350°. Line a large baking sheets with parchment paper or grease the baking sheet with cooking spray.
In a medium bowl, whisk together flour, baking powder, and salt.
In a large bowl using a hand or stand-up mixer, beat butter, sugar, and brown sugar until light and fluffy. Beat in egg and vanilla extract, then stir in flour mixture until just combined.
Crumble the freeze-dried strawberries slightly - I crumble them in their own package. Gently fold in strawberries and white chocolate chips.
Using a medium cookie scoop, scoop the dough and roll into balls. Place it on the baking sheet flattening them slightly.
Bake until cookies are set and just golden around edges, about 18 minutes.