PS: Never managed to take a photo of it, as we eat it all as soon as it is ready!!!
Preheat oven to 350 F. Combine all ingredients except chips in a good food processor, and blend until completely smooth. Really blend well. (A blender can work if you absolutely must, but the texture—and even the taste—will be much better in a food processor.) Stir in the chips, then pour into a greased 8×8 pan. Optional: sprinkle extra chocolate chips over the top. Cook the black bean brownies 15-18 minutes, then let cool at least 10 minutes before trying to cut. If they still look a bit undercooked, you can place them in the fridge overnight and they will magically firm up! Makes 9-12 brownies. The trick with these: serve them first, and then reveal the secret ingredient. In all the times I’ve served bean desserts, not one single person who didn’t know beforehand has ever guessed!
Original recipe: http://chocolatecoveredkatie.com/2012/09/06/no-flour-black-bean-brownies/#TFM7fjXGtSwCpQGP.99