Preheat your oven to 375°F (190°C).

In a large mixing bowl, combine softened unsalted butter with granulated sugar and brown sugar. Beat on medium speed for about 3-4 minutes until light and fluffy.

Add eggs one at a time, mixing well after each addition. Stir in vanilla extract.

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

Gradually add the dry ingredients to the wet mixture, combining on low speed until just mixed.

Fold in semi-sweet chocolate chips and optional chopped nuts.

Drop spoonfuls of cookie dough onto ungreased baking sheets, leaving about 2 inches of space between each mound.

Bake cookies for 9 to 11 minutes until golden brown on the edges and soft in the center.

Let the cookies cool on the baking sheets for about 5 minutes before transferring to wire racks.