Place your ripe banana in a medium mixing bowl and mash it with a fork until it's mostly smooth with just a few small lumps left. This forms the base of the whole recipe and adds natural sweetness. A riper banana mashes faster and tastes noticeably sweeter than a firmer one.
Add the peanut butter and honey directly into the mashed banana and stir until fully blended. The mixture should look glossy and smooth at this point, with no separate streaks of banana or peanut butter left. This step only takes about a minute of stirring.
Sprinkle in the oats, peanut butter powder, and cinnamon, then fold everything together with a spatula. Start with a smaller amount of peanut butter powder and add more gradually if the mixture still feels too wet. You're aiming for a consistency that holds its shape when pressed together.
If you're using chocolate chips or any other add-ins, gently fold them in now so they're evenly distributed. Avoid overmixing at this stage, since you don't want the chips to break apart or melt from the warmth of your hands. This is also the point to taste and adjust sweetness if needed.
Use a small cookie scoop to portion out about 1 ½ tablespoons of mixture per bite, then roll each one gently between your palms. If the mixture feels too sticky to roll, refrigerate it for 20 minutes first. Once rolled, store them in the fridge to firm up before serving.