Beat butter, granulated sugar, brown sugar and vanilla in large bowl with mixer until creamy.
Add eggs; beat well.
Gradually add flour mixture, beating well.
Stir in chocolate chips and nuts, if desired.
Drop by rounded teaspoons onto ungreased cookie sheet.
Bake 8 to 10 minutes or until lightly browned.
Cool slightly; remove from cookie sheet to wire rack.
Cool completely.
Notes / Tips / Wine Advice:
PAN RECIPE:Spread batter in greased 15-1/2x10-1/2x1-inch jelly-roll pan. Bake at 375°F. 20 minutes or until lightly browned. Cool completely; cut into bars. About 4 dozen bars.HERSHEY'S "PERFECTLY CHOCOLATE" CHOCOLATE CHIP COOKIES:Simply add 1/3 cup HERSHEY'S Cocoa to your favorite chocolate chip cookie recipe.SKOR & CHOCOLATE CHIP COOKIES:Use 1 cup finely chopped SKOR bars and 1 cup HERSHEY'S Semi-Sweet Chocolate Chips in place of 2 cups chocolate chips; omit nuts. Drop and bake as directed.ICE CREAM SANDWICH:Press one small scoop vanilla ice cream between two cookies. HIGHALTITUDE DIRECTIONS (classic cookies):- Increase flour to 2-2/3 cups. - Decrease baking soda to 3/4 teaspoon. - Decrease granulated sugar to 2/3 cup. - Decrease packed light brown sugar to 2/3 cup. - Add 1/2 teaspoon water with flour. - Bake at 375°F, 5 to 7 minutes or until top is light golden with golden brown edges.