Step 1: Preheat your oven to 375°F (190°C). Line two baking sheets with parchment paper or silicone baking mats. This will prevent sticking and help with even baking.
Step 2: In a large mixing bowl, using an electric mixer on medium speed, cream together the softened unsalted butter, granulated sugar, and light brown sugar for 2-3 minutes until the mixture is light, fluffy, and pale in color. This step is crucial for incorporating air.
Step 3: Beat in the eggs one at a time, mixing well after each addition until fully incorporated. Stir in the vanilla extract until just combined. Be careful not to overmix at this stage.
Step 4: In a separate medium bowl, whisk together the all-purpose flour, baking soda, and salt. Ensure they are thoroughly mixed to evenly distribute the leavening and seasoning throughout the dough.
Step 5: Gradually add the dry ingredients to the wet ingredients, mixing on low speed until just combined. Mix until no streaks of flour remain, but avoid overmixing as this can lead to tough cookies.
Step 6: Gently fold in the chocolate chips with a spatula until they are evenly distributed. For a bakery-style look, reserve a few chocolate chips to press onto the tops of the cookie dough balls before baking.
Step 7: Drop rounded tablespoons of dough (about 1.5-2 tablespoons per cookie) onto the prepared baking sheets, leaving about 2 inches between each cookie to allow for spreading. Using a cookie scoop helps ensure uniform size.
Step 8: Bake for 10-12 minutes, or until the edges are golden brown and the centers are still slightly soft and puffy. The cookies will continue to set as they cool. For an extra chewy cookie, pull them out when they look slightly underdone in the very center.
Step 9: Remove the baking sheets from the oven and let the cookies cool on the sheets for 5 minutes before carefully transferring them to a wire rack to cool completely. This prevents them from breaking and helps them firm up properly. Store cooled cookies in an airtight container at room temperature.