1. Heat oven to 375°F.
2. Beat butter, granulated sugar, brown sugar and vanilla in large bowl with mixer until creamy. Add eggs; beat well. Stir together flour, baking soda and salt; gradually add to butter mixture, beating until well blended. Stir in chocolate chips and nuts, if desired. Drop by teaspoons onto ungreased cookie sheet.
3. Bake 8 to 10 minutes or until lightly browned. Cool slightly; remove from cookie sheet to wire rack. Cool completely. Makes about 5 dozen cookies.
Pan Recipe: Spread batter into greased 15-1/2x10-1/2x1-inch jelly-roll pan. Bake at 375°F. 20 minutes or until lightly browned. Cool completely in pan on wire rack. Cut into bars. About 48 bars.