Chocolate and Salted Pistachio Cookies

Here is a sophisticated version of the chocolate chip cookie. Rich, crisp on the outside, and moist in the center, they call for dark, slightly bitter chocolate that marries perfectly with the creaminess of the delicately salted pistachios. When served still warm from the oven, they are utterly irresistible. Salted peanuts and peanut butter can be substituted for the pistachios and almond butter.