Beef with Mushrooms (Moo Goo Ngow)

1/4 lb flank steak
dash of pepper
1 t soy sauce
1/4 t salt or to taste
1/4 t monosodium glutamate
1/2 t sugar
3/4 c water
1 slice ginger root
1 t sherry
1/4 c sliced mushrooms
1 1/4 t cornstarch mixed with 3 T water

Slice the flank steak across the grain into thin slices. Mix pepper, soy sauce, salt, MSG, sugar and water. Using a high flame heat a well greased frying pan and add the ginger root. Add steak and stir fry for 1 minute, at the same time sprinkling sherry over the meat. Add mushrooms and water mixture. Cook and stir until it comes to a boil. Add cornstarch paste and cook and stir for 1/2 minute.