Award-Winning Soft Chocolate Chip Cookies

INGREDIENTS

• 4 1/2 cups all-purpose flour
• 2 teaspoons baking soda
• 2 cups butter, softened
• 1 1/2 cups packed brown sugar
• 1/2 cup white sugar
• 2 (3.4 ounce) packages instant vanilla pudding mix
• 4 eggs
• 2 teaspoons vanilla extract
• 4 cups semisweet chocolate chips
• 2 cups chopped walnuts (optional)