Preheat oven to 350º and prep baking pan (grease and line with parchment paper).
Puree black beans in food processor into a rough paste. In a large bowl, mix together the bean puree, eggs, oil, and vanilla.
In a separate bowl, combine cocoa powder, sugar, baking powder, salt and coffee.
Add dry ingredients to the wet ingredients, then stir in chocolate chips.
Pour batter into prepared pan and bake for 30-40 minutes or until edges are visibly cooked and the center doesn’t jiggle when you shake the pan (a slight jiggle is fine, as brownies will firm up as brownies cool).