Bring to a boil in ... Beat together eggs, sour cream and baking soda and ... is baking, prepare frosting. Melt together in double boiler: butter, cocoa and milk. Bring to a boil. ... out of the oven.
In covered blender container or ... except walnuts and frosting. With mixer at low ... To serve, prepare Sour Cream Frosting. Spread frosting over ... until smooth and fluffy.