Cream butter and sugar. Add eggs beating after each addition. Melt the Hershey Bars. Add a little to the egg mixture and beat and continue to add and beat > Add the buttermilk and flour alternately. Stir in the vanilla, salt and nuts. (I dust my pecans with a little flour to help keep in all cake. Pour in prepared tube pan that has been lined with wax paper. I usually spray with the baking stuff also. Bake at 325 for 90 minutes.