Chef's Notes: Soft, fudgy, and crackle-topped, these brownies are a true classic. Dorie adds espresso powder and walnuts, but you could stir in anything from rum-flamed raisins to snipped apricots to candied pecans. From Baking Chez Moi: From My Paris Home to Your Home Anywhere. © 2014 by Dorie Greenspan, published by Rux Martin/Houghton Mifflin Harcourt. All rights reserved