01 - Preheat oven to 350°F. Line two large baking sheets with parchment paper.
02 - Whisk flour, baking powder, baking soda, and salt together in a medium bowl. Set aside.
03 - Beat unsalted butter, granulated sugar, and brown sugar in a large bowl with an electric mixer until light and fluffy, about 2–3 minutes.
04 - Mix in eggs one at a time, beating well after each addition. Stir in pure vanilla extract until fully combined.
05 - Gradually add dry ingredients to the wet mixture, mixing until just combined. Avoid overmixing.
06 - Gently fold semi-sweet chocolate chips into the dough to distribute evenly.
07 - Using a large cookie scoop (about 1/4 cup per portion), drop dough onto the prepared baking sheets, leaving at least 3 inches between each cookie.
08 - Bake for 11–13 minutes, until edges are lightly golden and centers appear set but soft. Do not overbake.
09 - Allow cookies to cool on the baking sheet for 10 minutes, then transfer to a wire rack to cool completely.