2 sticks butter
1 c. water
4 tbsp. cocoa
2 c. flour
1 tsp. baking soda
1/2 tsp. salt
2 c. sugar
2 eggs
1/2 c. sour cream

Combine first 3 ingredients in saucepan and bring to rolling boil. Sift flour, baking soda and salt; add sugar, eggs, sour cream and chocolate mixture to the sifted ingredients. Beat well and pour into greased cookie sheet. Bake 12-15 minutes in 400 degree oven.

ICING:

Bring to light rolling boil 1 stick butter, 3 tablespoons cocoa and 6 tablespoons milk. Add 1 cup chopped walnuts, 1 teaspoon vanilla and 1 box confectioners sugar; mix well and pour on hot cake. Cool before cutting into squares.