Tunnel of Fudge Chocolate Cake 
 and there is no other name to describe it.. 
3 cups butter; 1 1/2 cup sugar; 
6 large eggs; 2 cups flour ;
1 can prepared creamy chocolate frosting ;
2 cups chopped fine nuts ;
Beat eggs into butter, one at a time.
Then beat in sugar. Stir in flour and icing. 
Stir in nuts. 
Bake in greased and floured non-stick Bundt pan
 at 350 degrees F. for 60 mins. Let cool 1 hour. 
Work loose carefully. Do not cook until done as
 it will be gooey in the middle as that is your 
icing and now the cake filling.