Chicken Tetrazzini

Preparation : cut chicken into julienne strips heat the veloute sauce to a simmer in a saucepan, over a medium flame heat the butter in a skillet, over a moderate flame add the mushrooms and saute quickly, without browning add to the sauce combine egg yolks and the cream to make a liason stir in 1/4 cup of the hot veloute sauce-mix well quickly stir the tempered liason back into the sauce add the chicken to the sauce and heat to just below a simmer, without boiling lightly butter the insides of individual casseroles or ramekins place 1/3 cup cooked spaghetti into the bottom of each top with 3/4 cup of the chicken and sauce mixture sprinkle the tops with parmesan cheese pass under the broiler to toast lightly serve hot