Preheat oven to 350 degrees Fahrenheit. Prepare flax egg, set aside. Line cookie sheet with parchment paper.
In a large bowl, whisk almond butter, maple syrup, and flax egg together. Add almond flour, baking powder, baking soda, salt, and vanilla extract. Stir to combine.
Fold in chocolate chips. Chill in refrigerator for 30 minutes.
Using a tablespoon, scoop cookie dough and gently roll into a loose ball with your hands. (If dough doesn't roll into a loose ball, add a bit more almond flour.) The dough will be sticky, spray your hands will cooking spray as needed to make rolling easier. Place ball on cookie sheet. Sprinkle with sea salt.
Bake for 10-12 minutes or until cookies start to look golden on top (I found 11 minutes was perfect for my oven). Allow to rest on cookie sheet for 1 minute before removing with a spatula and placing on wire rack. Leave on wire rack until completely cool.