Instructions: 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.

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