Preheat your oven to 350°F (175°C) and line or lightly grease two baking sheets with parchment paper.

In a large mixing bowl, cream together softened unsalted butter, granulated sugar, and brown sugar for 3-4 minutes until light and fluffy.

Mix in the room temperature egg and pure vanilla extract until fully incorporated.

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

Gradually add the dry ingredients to the wet mixture, mixing just until combined; avoid overmixing.

If the dough is too sticky, cover with plastic wrap and refrigerate for 20-30 minutes.

Scoop rounded portions of dough onto the prepared baking sheets, leaving space for spreading.

Bake for 10-12 minutes or until edges turn golden brown; centers should remain soft.

Allow cookies to cool on the baking sheets for 5 minutes before transferring to wire racks to cool completely.