What’s a better treat, when the weather gets warmer, than ice cream? How about ice cream covered with a chocolate shell? You can definitely order ice cream like this at a restaurant, but when you want the joy of a chocolate shell on your ice cream at home, you don’t have to settle for the lackluster store-bought stuff. Instead, try this recipe from America’ Test Kitchen. The perfect thin, chocolatey shell for ice cream can be made with the help of a secret ingredient you may not immediately think to include: