Preheat oven to 350 degrees Fahrenheit (175 degrees Celsius) and line baking sheets with parchment paper.
In a large bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy.
Beat in the egg and vanilla extract until well combined.
In a separate bowl, whisk together the flour, baking soda, and salt.
Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
Gently fold in the white chocolate chips and freeze-dried raspberries by hand.
Scoop rounded tablespoons of dough onto the prepared baking sheets, spacing them 2 inches apart.
Bake for 10 to 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.