Place the unsalted butter in a medium saucepan over medium heat. Stir frequently as it melts, foams, and turns golden brown. Remove from heat once it smells nutty and brown bits form at the bottom.
Transfer the browned butter to a heat-safe bowl and refrigerate or freeze until it's solid but still soft. This helps prevent overly flat cookies.
In a mixing bowl, cream the cooled butter with brown sugar and granulated sugar until light and fluffy.
Add eggs and vanilla extract. Mix until fully incorporated and fluffy.
In a separate bowl, whisk together flour, baking soda, and salt. Gradually add to the wet ingredients and mix until just combined.
Fold in the semisweet chocolate chips evenly throughout the dough.
Form dough into large balls using about ¼ cup of dough each. Place on a parchment-lined baking sheet, spacing them apart.
Bake at 375°F (190°C) for 8–10 minutes, until edges are golden and centers remain soft. Cool on the baking sheet for a few minutes before transferring to a wire rack.