Test cook Erin McMurrer uncovers the secrets to the ultimate Red Lentil Soup with North African Spices. Get the recipe for Red Lentil Soup with North African Spices: Buy our winning large saucepan: ABOUT US: Located in Boston’s Seaport District in the historic Innovation and Design Building, America’s Test Kitchen features 15,000 square feet of kitchen space including multiple photography and video studios . It is the home of Cook’s Illustrated magazine and Cook’s Country magazine and is the workday destination for more than 60 test cooks, editors, and cookware specialists. Our mission is to test recipes over and over again until we understand how and why they work and until we arrive at the best version. If you like us, follow us:.