Cheese mushroom suffle

1. In frying pan, melt butter; add mushrooms and onion, stirring until all liquid evaporates, about 5 minutes.
2. Add seasonings and flour; stir until blended.
3. Gradually stir in milk and sherry.
4. Blend in egg yolks one at a time.
5. In a separate bowl, beat egg whites until stiff peaks form.
6. Foldi whites into mushroom mixture until just blended; fold in about 4/5 of cheese.
7. Spoon mixture into buttered individual souffle dishes or single large souffle dish.
8. Sprinkle remaining cheese on top. Bakei small dishes for 25-30 minutes at 375 degrees.
9. Bake large souffle at 350