Preheat your oven to 350°F (175°C) to ensure even baking and a golden finish.
Line a baking sheet with parchment paper to prevent sticking and simplify cleanup.
Mash the ripe bananas in a mixing bowl until smooth, measuring about 1 cup.
Add almond butter, maple syrup, egg, and vanilla extract to the mashed bananas; mix until creamy and well combined.
In a separate bowl, whisk together oat flour, ground cinnamon, baking soda, and sea salt for even distribution.
Gradually stir the dry ingredients into the wet mixture until just combined to keep cookies tender.
Gently fold in old-fashioned oats, raisins, and chocolate chips (if using) evenly throughout the dough.
Portion the dough onto the prepared baking sheet using a tablespoon or cookie scoop, spacing cookies to allow slight spreading. Sprinkle flaky sea salt on top if desired.
Bake in the preheated oven for 12-15 minutes until edges are lightly golden; centers may appear slightly underbaked but will firm as they cool.
Let cookies cool on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely. Enjoy warm or at room temperature!