1. Heat oven to 350°F.
2. Beat butter and shortening in large bowl until well blended.
3. Add brown sugar and granulated sugar; beat thoroughly. Add sugar and vanilla, beating until well blended.
4. Combine flour, baking soda & salt; gradually beat into butter mixture.
5. Stir in chocolate chips and nuts, if desired.
6. Drop by teaspoons onto greased cookie sheet.
7. Bake 10-12 minutes or until lightly browned.
8. Cool slightly; remove from cookie sheet to wire rack.
9. Cool completely.
10. Serve with ice cold milk and enjoy.