Preheat your oven to 375°F (190°C) and line two large baking sheets with parchment paper or silicone baking mats.
In a medium bowl, whisk together the all-purpose flour, baking powder, and salt until evenly combined.
In the bowl of a stand mixer fitted with the paddle attachment, cream the softened butter and 1 cup of granulated sugar on medium-high speed for 3 to 4 minutes until the mixture is pale and fluffy.
Add the egg and vanilla extract to the butter mixture, beating until well combined and smooth.
Turn the mixer to low and gradually add the dry flour mixture, mixing just until no white streaks remain. Do not overmix.
Fold in the chocolate chips by hand using a rubber spatula.
Place the remaining 1/4 cup of granulated sugar in a small shallow bowl.
Scoop approximately 1.5 tablespoons of dough (using a medium cookie scoop) and roll into a ball. Roll each ball in the granulated sugar until evenly coated.
Place the dough balls on the prepared baking sheets, spaced 2 inches apart.
Bake for 10 to 12 minutes, or until the edges are just set and very lightly golden, but the centers still appear slightly soft.
Allow the cookies to cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely.