Sift dry ingredients. Set aside. Cream shortening with sugar. Add eggs and beat well. Add chocolate or cocoa and potatoes. Blend well and add dry ingredients alternately with coffee and vanilla, beating until smooth after each addition. Add 1 cup chopped walnuts. Blend well. Grease two 9 inch layer pans or one 13 x 9 inch pan. Bake at 350 for 30 minutes. Frost with buttercream frosting.
1/2 cup butter or margarine
2 cups powdered sugar
1/4 cup milk
1 t. vanilla
Cream butter or margarine with sugar and milk. Blend until smooth. Add more sugar or milk until smooth consistency is reached. Add vanilla. Spread on cake. Frosts one 9 inch layer cake. Option: Use onely 1/4 cup butter or margarine and 3 oz. softened cream cheese; blend until smooth and mix with remaining ingredients.
Comida Sabrosa, Homestyle Southwestern Cooking