Bread and Onion Soup

Onion soup can also be turned into a panade or a classic gratin. A panade is a soup with the bread already in it, but unlike most versions of soupe à l’oignon, which contain broth covered with a crunchy layer of bread and cheese, panades contain so much bread that all the liquid is absorbed. The panade is served in steaming, stringy, delicious mounds. Most panades are cooked gently in a pot, but if you spread the same mixture into a baking dish and sprinkle it with cheese, you can turn it i