Preheat & Prep: Preheat your oven to 350°F (175°C) and line a large baking sheet with parchment paper.
Cream the Wet Ingredients: In your large mixing bowl, vigorously whisk together the creamy almond butter, milk, unsweetened applesauce, coconut sugar, and vanilla extract for about 30 to 45 seconds until the sugar dissolves and the mixture transforms into a completely smooth, thick, glossy syrup right at the bottom of the bowl.
Layer the Dry Ingredients: Add your quick-cooking oats, all-purpose flour, oat flour, baking soda, salt, and ground cinnamon straight into the bowl, right on top of your wet syrup base.
Stir and Rest: Use a sturdy spoon or spatula to stir everything together from the bottom up, mixing gently just until the dry flour pockets completely disappear and a thick, uniform cookie dough forms, then let the bowl rest on your counter for 5 minutes so the quick oats can soak up the moisture without drying out the dough.
Scoop and Shape: Use a 1.5-inch cookie scoop to drop the dough into 15 uniform rounds onto your prepared baking sheet, and use the palm of your hand or a fork to press each dough ball down lightly into a thick, ½-inch disc shape since the eggless dough will not spread much on its own.
Bake and Cool: Bake at 350°F (175°C) for exactly 9 to 10 minutes until the outer edges feel set and look light golden brown, then let the cookies sit on the hot pan for 5 minutes to fully set their soft-baked texture before serving.