Preheat the oven to 350F. Prepare a 9x9 baking dish with cooking spray and/or parchment paper.
In a small pot, melt the butter over medium-low heat. Break the baking chocolate into chunks and stir it into the butter until melted. Turn the heat off and remove the pot from the heat.
Let the chocolate mixture sit for about 2 minutes to cool slightly, then stir in the sugars, vanilla, flour, cocoa powder, and salt.
Quickly stir in the eggs one at a time so the eggs incorporate into the chocolate mixture and don’t scramble.
Stir in the chocolate chips.
Spread the batter into the prepared baking dish and bake the brownies for 32-35 minutes. I go lower on the time for extra chewy brownies in the middle. The center of the brownies should be soft and the edges just pulling away from the sides of the pan.
Let the brownies cool in the pan for at least ten minutes before slicing and serving. YUM.