One Egg Cake

1 egg

1/2 cup butter or margarine

1 cup sugar

1 1/2 cups flour

3 tbsp. (heaping) powdered cocoa 1 tsp. baking powder

1/2 tsp. salt

1 cup milk with 1 tsp. lemon juice and 1 tsp. baking soda

1 tsp. vanilla

Icing

1 cup (plus 2 tbsp.) powdered sugar

1 tbsp. butter or margarine

2 tbsp. (heaping) powdered cocoa

2 tbsp. hot water

1/2 tsp. vanilla

Preheat oven at 325 F degrees. With an electric mixer, mix egg, butter and sugar in a bowl. Combine flour, cocoa, baking powder and salt in a bowl. Mix milk, lemon juice and baking soda mixture and flour mixture alternatively to egg mixture. Stir in vanilla. Pour into oiled and floured 9 by 13 inch sheet cake pan. Bake 20-25 minutes or until toothpick inserted in cake comes out clean. Meanwhile, make icing. When cake is done, frost immediately.