Preheat the oven to 350 degrees F and line a large baking sheet with parchment paper.

Mash the bananas in a mixing bowl until most of the lumps are out - it’s okay to leave it somewhat chunky.

Stir in the peanut butter vigorously until creamy and well-incorporated.

Mix in the cacao powder. Note that it will want to fluff up like a flour explosion so stir gently at first and once it is somewhat mixed in, you can stir more vigorously.

The dough will be very gooey and sticky - this is normal!

Use two spoons to scoop the cookie dough onto the baking sheet, making whatever size cookies you like! The dough won’t spread very much during baking.

Bake for 15 to 18 minutes, or until the cookies appear set up.

Allow cookies to cool 5 to 10 minutes before eating.