Preheat oven to 350° F. Line a baking sheet with parchment paper and set aside.
In a medium-sized bowl, whisk together the flour, baking soda, and salt. Set aside.
2¼ cup all-purpose flour, ¾ teaspoon baking soda, ½ teaspoon salt
In a large bowl, use an electric mixer to beat the butter and both sugars until light and fluffy, for about 1-2 minutes. Add in the egg and vanilla, mixing until smooth. Gradually mix in the flour mixture until just combined (don't overmix here).
¾ cup unsalted butter, ½ cup granulated sugar, ½ cup light brown sugar, 1 large egg, 1 teaspoon vanilla extract
Use a rubber spatula to fold in the white chocolate chips. Then fold in the raspberries (if using fresh raspberries, be very gentle when mixing them in as you don't want to squish them).
½ cup freeze-dried raspberries, ¾ cup white chocolate chips
Use a cookie scoop or measuring spoon to scoop out 1½ tbsp-sized balls of dough onto cookie sheet, leaving 3 inches of space between cookies. Bake for 10-12 minutes, or until the edges are slightly golden brown. Remove from the oven and allow them to cool for 5-10 minutes before transferring them to wire cooling rack to cool completely.