Preheat your oven to 350°F (175°C). Grease a 9x13 inch baking pan.

In a large mixing bowl, cream together the softened butter, granulated sugar, and brown sugar until smooth.

Beat in the eggs one at a time, then stir in the vanilla extract.

In another bowl, combine the flour, baking soda, and salt. Gradually add this dry mixture to the wet mixture, mixing until well incorporated.

Fold in the chocolate chips and chopped nuts if using.

Spread the cookie dough evenly in the prepared baking pan.

Bake for 25-30 minutes or until the edges are golden brown and a toothpick inserted in the center comes out clean.

Allow to cool in the pan before cutting into bars.

Once cooled, decorate with holiday sprinkles as desired. Enjoy!