Make a cream sauce by heating butter in a saucepan until bubbling. Blend in 2 tablespoons flour, 1/4 teaspoon salt, 1/8 teaspoon pepper. Heat 1 cup milk and pour slowly into the butter and flour, stirring until smooth. Mix cream sauce with egg yolk and stir in the grated egg whites. Sauce yields 2 servings.

Cut abalone into bite-size pieces, place on toasted muffin half and pour the sauce over. Sprinkle with chopped egg yolk.