Devil's Food Cake

This section is from the book Recipes From Here And There, by The Thirty Group Bethany Union Church. Directions: Cream one-half cup butter and one and one-half cups sugar. Add two beaten eggs; one and one-half cups sour milk or buttermilk, to which one teaspoon baking soda dissolved in one tablespoon boiling water has been added; one-half bar melted bittersweet chocolate; pinch salt, two cups Swansdown flour sifted before measuring. Bake in two layers. Seven minute icing: To one beaten egg white, add one scant cup sugar, three tablespoons water. Cook seven minutes in double boiler. Add ten marshmallows. Brought by Dottie Beaver