Preheat the oven to 350 degrees and line cookie sheets with parchment paper or silicone mats.
In a microwave-safe bowl, melt the butter and set aside to cool.
Mix the flour, cocoa powder, baking soda, and salt with a whisk. Set aside.
In a large mixing bowl, with an electric mixer, beat the melted and cooled butter and sugar until well combined. This will be approximately 30-60 on high speed.
Add the eggs and vanilla extract and beat on medium speed for around 30 seconds until fully incorporated.
Add the dry ingredients in 3 sections, beating on low speed between each addition. Scrape the sides as needed to make sure all of the flour mixture is getting incorporated. As soon as the last bit of the dry ingredients have been incorporated, stop beating.
With a rubber spatula, mix in the chocolate chips by hand until evenly dispersed.
Using a large cookie scoop, add cookie dough balls to a lined baking sheet. They should be about 50-55g each or a bit less than ¼ cup. Make sure there is at least 2-3 inches between cookie dough balls so they don't spread into each other.
Bake for 10-12 minutes.
Allow cookies to cool on the baking sheet for 5 minutes and then transfer to wire rack to cool.