Preheat the oven to 300 degrees F.
To prepare your 8" square metal baking pan, first grease the pan with softened butter. Next, cut an 8" wide strip of parchment paper and lay it in the pan so it lines the bottom and two of the sides.
Combine all of the dry ingredients in a large bowl, making sure to sift the cocoa powder as you add it.
Add the eggs, melted butter, and vanilla to the bowl and whisk quickly to combine. The coconut flour will slowly absorb more moisture, eventually creating a very thick batter. You want to be done whisking before that happens!
Using a rubber spatula, scrape down the sides of the bowl and fold in the chocolate chips.
Spread the batter evenly in the pan.
Bake at 300 degrees F for 15-17 minutes or just until done, turning the pan halfway through the baking time.
Allow the pan to cool and then use the parchment strip to lift the brownies out of the pan and onto a cutting board. Slice into 16 pieces.