Preheat your oven to 350°F (175°C) and line your baking sheets with parchment paper.

In a large mixing bowl, cream together the softened unsalted butter, granulated sugar, and brown sugar until light and fluffy.

Add the eggs one at a time, mixing well after each addition. Then, stir in the vanilla extract.

In a separate bowl, whisk together the flour, cocoa powder, baking soda, and salt. Gradually mix this into the wet ingredients.

Gently fold in the chocolate chips until evenly distributed in the dough.

Drop tablespoons of the dough onto the prepared baking sheets, leaving 2 inches between each.

Bake for 9 to 11 minutes, removing them when the edges are set but the centers look slightly underbaked.

Let the cookies cool on the sheets for about 5 minutes before transferring to a wire rack to cool completely.