01 -
Heat your oven to 350°F (176°C). Puree black beans in a food processor until smooth like a paste. In a big bowl, mix the beans, eggs, oil, and vanilla together.
02 -
Mix cocoa, sugar, salt, baking powder, and optional coffee in a separate bowl. Add this mixture into the wet stuff, then toss in the chocolate chips and give it a good stir.
03 -
Line an 8x8 or 9x9 inch baking dish with parchment and grease it up first. Pour in the batter and bake for 30-40 minutes until the edges look firm and the middle is mostly steady.
04 -
Let them cool down all the way before slicing them up.