01 - Preheat oven to 350°F. Line two baking sheets with parchment paper.
02 - Whisk flour, baking soda, baking powder, and salt in a medium bowl until thoroughly blended.
03 - Beat softened butter and granulated sugar in a large bowl until light and fluffy, approximately 2-3 minutes.
04 - Mix in egg, lemon zest, lemon juice, and vanilla extract. Beat until fully incorporated.
05 - Gradually add dry ingredients to wet mixture, mixing until just combined. Avoid overmixing.
06 - Gently fold raspberries and white chocolate chips into dough, taking care not to crush berries.
07 - Scoop tablespoon-sized dough balls onto prepared baking sheets, spacing 2 inches apart.
08 - Bake 10-12 minutes until edges are lightly golden and centers are set.
09 - Let cookies rest on baking sheet 5 minutes, then transfer to wire rack to cool completely.