Mix flour, baking soda, and salt in medium bowl. Beat butter and sugars in large bowl with 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 on ungreased baking sheet. Bake in preheated oven @ 375. 8 to 10 minutes or until cookies are lightly browned. Cool on baking sheet 1 minute. Makes 5 dozen.