01 - Melt butter in a medium saucepan over medium heat. Cook, stirring frequently, until butter foams, turns golden brown, and smells nutty (approximately 5–7 minutes). Transfer immediately to a large bowl and cool for 10 minutes.
02 - Whisk brown sugar and granulated sugar into the cooled browned butter until thoroughly combined and smooth.
03 - Add eggs one at a time, whisking well after each addition. Stir in vanilla extract until fully incorporated.
04 - In a separate bowl, whisk together all-purpose flour, baking soda, and fine sea salt until evenly distributed.
05 - Gradually add the dry ingredient mixture to the wet ingredients, stirring until just combined. Be careful not to overmix.
06 - Gently fold in semi-sweet chocolate chips or chunks until evenly distributed throughout the dough. Cover and refrigerate for at least 30 minutes for thicker cookies.
07 - Preheat oven to 350°F (175°C). Line two baking sheets with parchment paper.
08 - Scoop dough portions (approximately 2 tablespoons each) onto prepared baking sheets, spacing 2 inches apart to allow for spreading.
09 - Bake for 10–12 minutes or until edges are golden brown and centers are just set. Avoid overbaking for chewy texture.
10 - Let cookies cool on the baking sheet for 5 minutes to set, then transfer to a wire rack to cool completely.