Preheat the oven to 375 degrees F (190 degrees C).
Mix flour, baking soda and salt in medium bowl. Set aside. Beat butter and sugars in a large bowl with an electric mixer on medium speed until light and fluffy. Add eggs and vanilla; mix well. Gradually beat in flour mixture on low speed until well mixed. Stir in chocolate chips and walnuts.
Drop by rounded tablespoons about 2 inches apart onto ungreased baking sheets.
Bake 8 to 10 minutes or until lightly browned.
Cool on baking sheets 1 minute. Remove to wire racks; cool completely.