Preheat oven to 180 C / Gas 4. Line a 20cm square baking dish with parchment.
Combine beans, eggs, applesauce, cocoa powder, coffee, vanilla, bicarbonate of soda and salt in a food processor. Process until smooth. Add 80g chocolate chips to brownie mixture; stir gently to combine.
Pour the mixture into the prepared baking dish; top with remaining chocolate chips.
Bake in the preheated oven until a skewer inserted into the middle comes out clean, about 30 minutes. Remove from oven. Let cool completely before cutting into squares, about 15 minutes.