Preheat oven to 350 degrees and prepare your baking dish by lightly spraying with non-stick spray, then lining with 2 pieces of parchment paper to create a "sling" (You will cross these over each other) and then spray again lightly with non-stick spray.
In a medium sized bowl combine the flour, cocoa powder, baking powder, instant coffee and salt. Set aside.
In a large pot, melt together the sugars and butter, stirring continuously. You want the sugar crystals to be as fully dissolved as possible.
Remove from heat and stir in the chocolate chips and vanilla extract. Continue to stir until chocolate chips are fully melted. Allow for this to cool until room temperature.
Once your chocolate mixture is room temperature, fold in your eggs until just combined. Do this gently and be sure to not over mix!
Now, slowly fold in your flour mixture only until just combined. This should be 30-40 folds. It's okay if your batter is a touch lumpy, be careful not to over mix!
Now, pour your batter into your prepared baking dish and bake for 35-40 minutes. The brownies are done when the top begins to crack.
While the brownies are baking prepare your ice bath and taking large pan (such as 13 x9) and filling 2/3 of the way with a mix of ice old water and ice.
Once brownies are done cooking immediately place them in .the ice bath to cool. Allow brownies to cool for at least 3-5 hours before cutting, ideally.
To cut the brownies first remove them from the pan by lifting then up with the parchment paper and placing them on a cutting board. Then, create "notches" with a very sharp knife, splitting each side into 3rds. The, use a plastic knife to connect the lines and cut the brownies fully (this helps with clean lines!)
Dig into the brownies and ENJOY!