Preheat oven to 350°F (175°C) and line two baking sheets with parchment paper.
In a medium bowl, whisk together flour, salt, and baking soda.
Cream butter, brown sugar, and white sugar in a mixing bowl using a standing or handheld mixer for 2 minutes until fluffy.
Add egg and vanilla extract, and mix until combined.
Gradually mix in the dry ingredients until just combined. Fold in chopped white chocolate.
Carefully fold in raspberries, ensuring they don’t mash into the dough.
Form 1.5-tablespoon-sized dough balls and place them on baking sheets 3-4 inches apart. Refrigerate extra dough while baking.
Bake one sheet at a time for 8-10 minutes until edges are golden and tops are set but soft.
Cool cookies on the baking sheet for 10 minutes, then transfer to a wire rack to cool completely.