- Preheat oven to 350 degrees F (175 degrees C).
- In a large bowl, cream together butter and sugar until smooth.
- Beat in eggs one at a time, then stir in the vanilla.
- Combine flour, cocoa, baking soda, and salt; stir into the creamed mixture until just blended.
- Mix in walnuts.
- Drop by spoonfuls onto ungreased cookie sheets.
- Bake for 8 to 10 minutes in the preheated oven. Cool for a couple of minutes on the cookie sheet before transferring to wire racks to cool completely.
source: AllRecipes.com - Chewy Chocolate Cookies II