Preheat your oven to 350 degrees F and grease a 8x8" baking pan.
In a medium bowl, whisk together the gluten-free oats, gluten-free oat flour, baking powder, cinnamon and salt. Set aside.
In a large mixing bowl, combine the melted coconut oil, brown sugar, and maple syrup. Mix until well combined.
Add the eggs one at a time, beating well after each addition. Stir in the vanilla extract and almond milk.
Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Fold in chocolate chips.
Pour the batter evenly into the prepared baking pan.
Bake in the preheated oven for 22-25 minutes or until the edges are golden brown and a toothpick inserted into the center comes out with a few moist crumbs (but not wet).
Allow the cookie bars to cool completely in the pan before cutting them into squares or bars.