Overview: Test cook Bridget Lancaster shows host Christopher Kimball how to make Skillet Roast Chicken and Potatoes at home. Then, tasting expert Jack Bishop challenges host Christopher Kimball to a tasting of brown mustard. Then, Chris shares a test kitchen tip for aerating wine. Next, test cook Julia Collin Davison uncovers the secrets to perfect Brussels Sprout Salad. And finally, Chris teaches a cooking class all about Secret Ingredient Biscuits.