Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
In a large mixing bowl, combine the mashed bananas, almond butter, honey (or maple syrup), and vanilla extract. Mix well until smooth.
Add the rolled oats, cinnamon, baking powder, and salt to the banana mixture. Stir until everything is well combined.
Gently fold in the dark chocolate chips (or raisins) until evenly distributed throughout the dough.
Using a tablespoon, scoop out the cookie dough and place it onto the prepared baking sheet, flattening each scoop slightly to form a cookie shape. Leave a little space between each cookie as they will spread slightly during baking.
Bake in the preheated oven for about 10-12 minutes, or until the cookies are golden brown on the edges.
Remove from the oven and let cool on the baking sheet for 5 minutes before transferring to a wire rack to cool completely.
Notes
You can substitute almond butter with peanut butter and dark chocolate chips with raisins.