If you're craving a chewy peanut buttery treat, this might just become your new favorite cookie. While a cookie is still a cookie, this recipe offer a slightly healthier goody. The chewy oatmeal cookie coupled with the creamy peanut butter and mashed banana mixture makes a perfect flavor combination. The only downside to whipping up a batch of these cookies is you may find it impossible to hold back from eating the entire batch. Plus, it's National Peanut Butter Month, so get baking and celebrate.