Engineering the perfect cookie: You can control the diameter and thickness of your favorite chocolate chip cookies by changing the temperature of the butter and the amount of flour in the dough. Morgan Walker/NPR hide caption

itoggle caption Morgan Walker/NPR

Three of Josh Berner's fat-infused cocktails. From left: Play It Sam, United Colors of Basilton and Chile Manteca Y Dulce. Scroll down for the recipes. Karen Castillo Farfán/NPR hide caption

itoggle caption Karen Castillo Farfán/NPR