Cookie That Changed My LifeNancy Silverton made her reputation as the original pastry chef for Wolfgang Puck's restaurant Spago. Two years ago, Silverton bit into a particularly delicious peanut butter cookie and had an epiphany: every single thing we bake should taste this good. And so she decided to return to her roots, and set to work perfecting the rest of the American baking canon. From Lattice Topped Apple Pie to Carrot Cake with Brown Butter Cream Cheese Frosting (the