Place in a saucepan four good-sized, sliced truffles with a glassful of Madeira wine. Reduce to about half, which will take two minutes; add a tablespoonful of butter; season with one pinch of salt and half a pinch of pepper. Crack into the saucepan twelve eggs, mix all well together with the spatula for three minutes on a very hot stove without stopping. Turn into a hot tureen and serve.