We are launching a new program on Sunday evening: America's Test Kitchen Radio. This week, we investigate the truth about fad diets, from blood types to Paleo. We'll be tasting white chocolate, and we'll discuss the age old rivalry of wine vs. beer with expert Stephen Meuse. Then we'll head into the test kitchen to learn how to make the ultimate chocolate cupcakes with ganache filling. And of course, we'll be taking your calls to answer all of your cooking questions.