Man on the street Doc Willoughby investigates boxed versus homemade brownies in a head-to-head tasting. Then, test cook Julia Collin Davison reveals the secrets to better-than-the-box Chewy Brownies at home. Next, host Christopher Kimball visits NYC's famous Magnolia Bakery to find out what all the fuss is about! Then, test cook Yvonne Ruperti shows Chris how to make the Ultimate Chocolate Cupcakes. And finally, gadget guru Lisa McManus divulges the best baking gadgets.