1. Heat oven to 350°F. Line cookie sheet with parchment paper.
2. Stir together flour, sugar, cocoa, baking soda and salt in large bowl. Add butter, eggs, milk and vanilla; beat until well blended. Stir in chocolate chips and nuts. Drop batter by heaping teaspoonfuls onto prepared cookie sheet.
3. Bake 9 to 11 minutes or just until set. (Do not overbake.) Cool slightly; remove from cookie sheet to wire rack. Cool completely. Makes about 42 cookies.