1 c  Butter
2 c  Sugar
2    Eggs
1 c  Mashed potatoes, cold
1 ts Vanilla extract
2 c  Flour
1/4 c  Baking cocoa
1 ts Baking soda
1 c  Milk
1 c  Chopped nuts

In a mixing bowl, cream butter and sugar until fluffy. Add eggs, one at a
time, beating well after each addition. Blend in potatoes and vanilla.
Combine flour, cocoa and baking soda; add alternately with milk, blending
well after each addition. Stir in nuts.
Pour into a greased 13 x 9 x 2 inch baking pan. Bake at 350 F for 40-45
minutes or until cake tests done. Cool on wire rack. Yield: 12-16