Preheat your oven to 350°F (175°C).

In a large mixing bowl, cream together the softened butter, granulated sugar, and brown sugar until the mixture is light and fluffy.

Add the vanilla extract and eggs, one at a time, mixing well after each addition.

In a separate bowl, whisk together the all-purpose flour and baking soda.

Gradually mix the dry ingredients into the wet ingredients until well combined.

Fold in chocolate chunks (if specified) or any additional mix-ins such as crushed peppermint candies.

Drop spoonfuls of cookie dough onto a baking sheet lined with parchment paper.

Bake for 10-12 minutes or until the edges are lightly golden.

Allow cookies to cool on the baking sheet for a few minutes before transferring to a wire rack to cool completely.