Preheat oven to 350. Grease 9 x13 pan, preferably glass.
Bring butter, water, and cocoa powder to a boil.
Mix sugar and flour in another bowl.
Pour hot butter and cocoa mixture over flour and sugar, mix well.
Add next four ingredients
Spread in pan and bake until firm. 25-30 mins
Frost with Frosting
Bring butter, milk, and cocoa powder to a boil.
add to powdered sugar and whip until creamy and spread over warm