01 - Preheat the oven to 350°F. Line two baking sheets with parchment paper.
02 - In a medium bowl, whisk together the flour, baking soda, baking powder, and salt until evenly blended.
03 - In a large bowl, beat the butter and sugar together until light and fluffy, approximately 2-3 minutes.
04 - Add the egg, lemon zest, lemon juice, and vanilla extract to the butter mixture. Beat until thoroughly combined and smooth.
05 - Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Avoid overmixing to prevent tough cookies.
06 - Gently fold in the raspberries and white chocolate chips, taking care not to crush the berries excessively.
07 - Scoop tablespoon-sized balls of dough onto prepared baking sheets, spacing them 2 inches apart to allow for spreading.
08 - Bake for 10-12 minutes, or until edges are lightly golden and centers appear set.
09 - Allow cookies to rest on baking sheet for 5 minutes before transferring to a wire rack to cool completely.