Preheat oven to 350 degrees. Combine cashew butter, coconut sugar, egg, almond flour and baking soda in a medium sized bowl and stir with a wooden spoon to combine. Scoop some dough into your hand and flatten it out a bit. Place a piece of chocolate on the dough then fold the dough over so the chocolate is hiding inside. Then roll it back into a ball and flatten it out a bit on a parchment paper lined baking sheet. Sprinkle with a little flakey sea salt and bake for 8-10 minutes or until lightly browned on the bottom.