Just cook the pasta in plentiful salted water following the directions on the package, drain it and then season it with the grated truffle and put together it. It is popularly utilized in appetizers, eggs, meat and fish dishes, and pasta and pâté. Preparation: The potatoes are prepared as given under No. 6. Yolks of eggs, milk, vinegar, mustard, salt, pepper, sugar, flour and butter are combined nicely and cooked in double boiler till thick, stirring continually.