Preheat your oven to 350°F and line a baking sheet with parchment paper.
In a small blender or food processor, pulse the rolled oats until they reach a fine, flour-like consistency.
In a medium mixing bowl, whisk together the oat flour, vanilla protein powder, baking soda, and sea salt until thoroughly combined.
Add the liquid egg whites, almond butter, and vanilla extract to the dry ingredients, stirring with a spatula until a thick, uniform dough forms.
Gently fold in the dark chocolate chips until evenly distributed throughout the dough.
Scoop the dough into four equal portions and place them on the prepared baking sheet, flattening each slightly with the back of a spoon to form a cookie shape.
Bake for 8-10 minutes until the edges are golden and set, but the centers still feel slightly soft to the touch.
Remove from the oven and allow the cookies to cool on the baking sheet for at least 5 minutes before transferring them to a wire rack.