Preheat your oven to 350°F (175°C).

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

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

In another bowl, whisk together the all-purpose flour, cocoa powder, baking soda, and salt.

Gradually add the dry mixture to the wet mixture until just combined.

Fold in the chocolate chips using a spatula.

Drop tablespoons of dough onto ungreased cookie sheets, leaving space between each dollop.

Bake in the preheated oven for 10-12 minutes until the cookies are set but slightly soft in the center.

Allow cookies to cool on baking sheets for a few minutes before transferring them to wire racks to cool completely.