Preheat your oven to 350°F (175°C) to ensure even baking and perfect golden brown cookies.
In a large mixing bowl, combine the softened unsalted butter, brown sugar, and granulated sugar. Beat with a whisk or electric mixer until light and fluffy, about 2-3 minutes.
Crack the large egg into the mixture, then add the vanilla extract. Mix until fully incorporated.
In another bowl, whisk together the all-purpose flour, sea salt, and baking soda. Gradually add the dry ingredients to the wet mixture, stirring until just combined. Avoid overmixing.
Gently fold in the chocolate chips to evenly distribute throughout the dough.
Using a cookie scoop or tablespoon, drop generous amounts of dough onto a parchment-lined baking sheet, spacing about 2 inches apart. Bake for 10-12 minutes until edges are lightly golden.
Allow cookies to cool on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely before enjoying.