Cake: Bring butter, water and
cocoa to a boil. Add sugar, flour and salt. Beat in eggs, sour cream and baking
soda. Bake in greased and floured baking sheet (large with deep sides) at 350
for 25 minutes.
Frosting: Bring butter, milk, and cocoa to a boil.
Remove from heat and add powdered sugar, nuts and vanilla. Frost cake when
removed from oven... don't wait for it to cool.