Preheat oven to 350 degrees F. Lightly grease and line an 8x8 baking sheet with parchment paper.
In a bowl, mix coconut oil, brown sugar, egg and vanilla together until well combined. Add flour, baking soda, baking powder and salt. Mix until just combined. Don’t overmix. Fold in chopped chocolate.
Transfer mixture onto prepared baking sheet. Bake for 20-22 minutes or until edges are slightly golden brown. Sprinkle with sea salt. Serve and enjoy!