I used to work at Flour Bakery in Boston and this was my favorite cookie. By using this recipe from Joanne Chang herself, you can make these super chocolatey cooks at home, and as a mediocre baker, when I tell you the recipe isn't difficult you can believe me. The recipe calls for rye flour and I have never seen that in my life so just use that good ol’ AP. Bake some for a friend and show up at their place like a little cookie santa and then eat the rest yourself.