Preheat oven to 350 degrees.
Mix together almond butter, egg, brown sugar and vanilla.
Fold in chocolate chips and walnuts.
Spoon out tablespoon-sized mounds onto ungreased cookie sheet. Sprinkle with pinch of thick sea salt on top if desired.
Bake for 11 minutes, and then allow to cool for 5 minutes while cookies remain on the baking sheet. Transfer to baking rack to cool completely.