Preheat oven to 350 F. Combine all ingredients except your chocolate chips in a good food processor, and blend until completely smooth. If you're using a blender - make sure it is blended VERY WELL.
Stir in the chips, then pour into an 8x8 pan lined with parchment paper. Optional: sprinkle extra chocolate chips over the top.
Cook the black bean brownies for 15-18 minutes, then let cool for at least 10 minutes before trying to cut. These brownies will be very soft before firming up. If they still look a bit too undercooked, you can place them in the fridge overnight and they will magically harden! Makes 9-12 brownies.