01 - Preheat oven to 350°F. Line baking sheets with parchment paper.
02 - Whisk together flour, baking soda, and salt in a medium bowl until evenly blended.
03 - Beat softened butter with granulated and brown sugars in a large bowl until light and fluffy.
04 - Mix in egg and vanilla extract until fully incorporated into the butter mixture.
05 - Gradually add dry ingredients to the wet mixture, mixing until just combined. Do not overmix.
06 - Gently fold in chopped chocolate sandwich cookies and white chocolate chips until evenly distributed.
07 - Drop tablespoon-sized balls of dough onto prepared baking sheets, spacing about 2 inches apart.
08 - Bake for 10 to 12 minutes until edges are lightly golden and centers appear set.
09 - Let cookies rest on baking sheets for 5 minutes, then transfer to a wire rack to finish cooling.