Preheat oven to 375F. Line baking sheet with parchment paper.
In a stand mixer, cream together butter and sugars until smooth, about 2-3 minutes.
Add in eggs and vanilla. Cream again, making sure to scrape down bowl.
Add flour, cocoa powder, baking soda, baking powder and sea salt. Beat together until just combined.
Fold in chocolate chips.
Using a 3 T. scoop, scoop dough, roll the top of the cookies in sprinkles of choice, and then place on parchment paper, leaving about 2 inches between each cookie.
Bake for 10-12 minutes, until sides are looking firm (hard to tell if they are browned because of how dark them are). The center may look uncooked, but that is okay, they continue cooking when taken out of the oven and will be perfect!
Once out of the oven, sprinkle with flaky sea salt