Diana's chocolate sheet cake

---------- Recipe via Meal-Master (tm) v8.05
  
       Title: Diana's Chocolate Sheet Cake
  Categories: Cakes, Chocolate
       Yield: 18 servings
  
            Cake:
       2 c  Sugar
       2 c  All-purpose flour
     1/3 c  Cocoa
       1 ts Baking soda
     1/2 ts Salt
       1 c  Butter
       1 c  Water
     1/2 c  Buttermilk
       2 lg Eggs
       1 ts Vanilla
            Frosting:
     1/2 c  Butter
     1/4 c  Cocoa
       6 tb Milk
       4 c  Powdered sugar (1 pound)
       1 c  Chopped walnuts
  
   CAKE:  Combine sugar, flour, cocoa, baking soda and salt in
   large mixing bowl.  Mix well.  Heat butter and water in
   saucepan until boiling. Pour over dry ingredients and mix.
   Beat in buttermilk, eggs, and vanilla. Pour thin batter in
   greased and floured 15x10-inch pan.  Bake in 400F oven 20
   minutes.  Serve warm or cold.
   FROSTING:  Combine butter, cocoa, and milk.  Heat to
   boiling.  Pour over sugar and nuts.  Mix well.  Spread on
   hot cake.
   NOTE:  I like to substitute strong coffee for the milk and
   add 1/2 ts vanilla to the frosting.  This cake is
   reminiscent of "Texas Brownies."
  
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