Directions:
Chop fine one good-sized onion. Cook it, over hot water, in two level tablespoonfuls of butter. When the onion is soft add a quarter of a can of mushrooms, chopped fine, two level tablespoonfuls of flour and one cupful of stock. Stir until boiling. Add a tablespoonful of chopped parsley, a half teaspoonful of salt and a saltspoonful of pepper. Put a tablespoonful of this sauce in the bottom of individual cups. Break into each cup one egg. Pour over the remaining mixture.
Stand the cups in a pan of hot water and bake in a moderate oven about five minutes.