Preheat oven to 350 degrees F. Line a pan with a silicone mat or parchment paper.
In a medium bowl, make the flax egg by combining the ground flaxseed and water. Stir and set aside for 5 minutes to thicken.
In a large bowl, add the almond flour, oat flour, black sesame powder, baking soda, and salt. Whisk until combined and there are no clumps.
In the bowl with the flax egg, add the maple syrup, melted coconut oil, black sesame paste, and vanilla. Whisk until well combined.
Add the wet to the dry. Use a spatula to stir until combined. Batter will be thick. Fold in the chocolate chips. Use a cookie scoop (mine was 1.5 Tbsp) to scoop dough onto prepared pan. Add a few chocolate chips on top if desired. Slightly flatten the cookies with your palm, as they don’t spread much when baking. Bake for 12-14 minutes. Let it cool on the pan for 15 minutes, then remove and place on a wire rack to cool completely. Enjoy!