1 c. white onions
1/3 c. butter
1/2 c. flour
2 c. of milk
1 egg yolk
1/4 tsp. salt
1/4 tsp. cayenne
4 hard boiled eggs
2 tbsp. Parmesan cheese
1 tbsp. paprika

Heat 9 inch skillet over medium heat. Saute onion in butter until transparent. Stir in flour and cook slowly 3 to 5 minutes more.

Blend in milk and egg yolk until smooth. Add salt and pepper. Cook stirring constantly 8 to 10 minutes or until sauce thickens.

Remove from heat, add sliced eggs and mix lightly. Spoon into 2 (8 oz.) casseroles and sprinkle lightly with paprika and Parmesan cheese. Mix together. Place in oven until heated. Garnish with egg slices.