01 - Preheat oven to 350°F. Line two baking sheets with parchment paper.
02 - In a medium bowl, whisk together the flour, baking soda, and salt. Set aside.
03 - In a large bowl, beat the softened butter, granulated sugar, and brown sugar with an electric mixer until light and fluffy, about 2 to 3 minutes.
04 - Add the egg, egg yolk, vanilla extract, lemon zest, and lemon juice to the butter mixture. Beat until fully combined.
05 - Gradually add the dry ingredients to the wet mixture on low speed, mixing until just combined. Do not overmix.
06 - Gently fold in the raspberries and white chocolate chips, being careful not to crush the berries.
07 - Scoop dough in 2-tablespoon portions onto the prepared baking sheets, spacing about 2 inches apart.
08 - Bake for 11 to 13 minutes, until the edges are set but the centers still look slightly underbaked to ensure a chewy texture.
09 - Let the cookies cool on the baking sheets for 10 minutes, then transfer to a wire rack to cool completely.