Heat the oven to 350 degrees.
Combine the cocoa, flour, baking soda, and salt together in a medium-sized bowl.
Beat the butter, brown sugar, and white sugar together in a stand mixer. Mix in the eggs one at a time and beat after each egg is added. Pour in the vanilla and combine.
Slowly add in the flour and fold in the chocolate chips with a spatula.
Use a small cookie scoop and add the cookies to the baking sheet. Leave at least 2 inches between them. Bake the cookies for 10 minutes and let them sit on the pan for 5 minutes.
Place on a wire rack to finish cooling and enjoy!