Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
In a bowl, whisk together the flour, cocoa powder, baking powder, and salt.
In another bowl, combine the melted butter, granulated sugar, and brown sugar until smooth.
Add the eggs one at a time, mixing well after each addition.
Stir in the vanilla extract.
Gradually add the dry ingredients to the wet mixture, stirring until just combined.
Fold in the chocolate chips evenly throughout the dough.
Using a cookie scoop, drop dough onto the prepared baking sheet, spacing them about 2 inches apart.
Bake for 10-12 minutes, until the edges are set but the center is still soft.
Allow cookies to cool on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely.