01 - Preheat oven to 350°F. Line two baking sheets with parchment paper.
02 - In a medium bowl, whisk together flour, baking soda, baking powder, and salt until well blended.
03 - In a large bowl, beat butter and sugar together until light and fluffy, approximately 2-3 minutes.
04 - Add egg, lemon zest, lemon juice, and vanilla extract to the butter mixture. Beat until fully combined and smooth.
05 - Gradually add dry ingredients to the wet mixture, mixing until just combined. Avoid overmixing to prevent tough cookies.
06 - Gently fold in raspberries and white chocolate chips, taking care to minimize crushing the berries.
07 - Drop tablespoon-sized balls of dough onto prepared baking sheets, spacing 2 inches apart to allow for spreading.
08 - Bake for 10-12 minutes until edges are lightly golden and centers appear set.
09 - Let cookies rest on baking sheets for 5 minutes, then transfer to wire rack to cool completely.