Cook the chicories gently in butter till they are done. Then take each one, and roll it in a slice of ham, and put them in a fireproof dish. Then make a very good white sauce of flour and butter and milk, adding cheese to flavor it strongly, and the yolk of an egg. Pour this sauce over the chicory, and place the dish in the oven. Let it turn brownish, and then serve it directly.
Attributed to Mme. Vandervalle.