Ingredients:
2 Tablespoons butter
3 Tablespoons flour
1 cup milk
1 teaspoon salt
1/4 teaspoon mustard
1 cup grated American cheese
3 eggs, separated
Procedure:
1. Melt butter over low heat; add flour and milk.
2. Cook over low heat, stirring until thickened and smooth.
3. Add salt, mustard, and cheese, stirring until cheese is melted. Cool.
4. Fold in 3 egg yolks beaten until light in color.
5. Fold in stiffly-beaten egg whites.
6. Pour into ungreased casserole or souffle dish.
7. Set in pan of hot water and bake in 325 degree oven for 50 minutes, or until top is firm and browned.
Serves twelve people.
