Recipe from my grandmother. Read about them here.
||Preheat oven to 350 degrees. In a large bowl, cream butter and sugar until blended. Add eggs, one at a time, and vanilla.
In a separate bowl, combine flour, cocoa, baking soda, and salt. Gradually add to the butter/sugar mixture. Stir in nuts.
Drop dough by teaspoonfuls onto ungreased cookie sheets. Bake for 7 to 9 minutes. Cool on cookie sheets for a few minutes, then finish cooling on wire racks.