Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper.
In a mixing bowl, combine the granulated sugar, brown sugar, and melted butter. Mix well until the sugars are fully incorporated.
Add the eggs, one at a time, mixing after each addition, followed by the vanilla extract.
In another bowl, sift together the flour, cocoa powder, baking powder, and salt.
Gradually add the dry ingredients to the wet mixture, stirring until just combined. Be careful not to overmix.
Fold in the chocolate chips, ensuring they are evenly distributed throughout the dough.
Use a spoon or cookie scoop to drop rounded tablespoons of dough onto the prepared baking sheet, leaving some space between each cookie.
Bake in the preheated oven for 10-12 minutes, or until the edges are set but the centers are slightly soft.
Remove from the oven and let the cookies cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely.