Cream butter, gradually add sugar and beat well. Add one egg at a time,

beating well after each. Combine flour, cocoa, baking soda and salt and

add to creamed mixture, alternately with sour cream, beginning and ending

with the flour mixture. Add boiling water and mix well. Stir in vanilla.

Place in greased and floured 10" tube pan. Bake at 325 degrees for l

hour and 20 minutes. Cool 10-15 minutes in the pan and remove to cake

plate as soon as possible and cover with cake lid. Ice when completely

cooled.

Combine evaporated milk, sugar, and butter and boil for 3 minutes. Add

1/2 cup chocolate chips and vanilla. Stir well. This mixture will set up

just like fudge. Frost top of cake and part of sides. Keep covered!