Cream together the butter and sugars in large mixing bowl. Add eggs and vanilla. Mix until smooth.
In a medium bowl, whisk the flour, cocoa powder, baking soda, baking powder and salt. Add to the sugar mixture. When half-way combined, add the chocolate chips and finish combining. DO NOT OVER MIX. Refrigerate dough for 15-20 minutes.
Meanwhile, preheat oven to 350 and line two baking sheets with parchment paper. (Parchment paper is not essential but I definitely recommend!)
Scoop the dough onto the sheets and bake for 8-10 minutes. When the edges are slightly crisp, but still soft in the middle, remove from the oven. Let the cookies rest on sheet for a few minutes and then transfer to a cooling rack (My favorite stackable racks)
Notes
I like to mix milk chocolate chips and dark chocolate chunks, but you can do whatever you want!This recipe is from www.iheartnaptime.net