Preheat your oven to 350°. Line two baking sheets with parchment paper.
In a large bowl, beat the butter and sugar together until well combined. About two minutes. Scraping down the sides as needed. Add the egg and vanilla in and continue to beat until well combined.
In a separate bowl, combine the flour, cocoa powder, baking soda, baking powder, and salt together. Add half of the dry ingredients to the wet ingredients and mix. Then add the remaining dry ingredients and mix until it's well combined. Fold in the chocolate chips.
Scoop out the batter by heaping tablespoons. Roll in your hand and flatten slightly. Continue until all of the batter is used.
Bake cookies for 8-10 minutes. Let cool on cookie sheet for five minutes and then transfer to a wire rack to continue cooling.