Brown the Butter: In a skillet over medium heat, melt the butter and let it bubble until it turns a deep golden brown with a nutty aroma. Remove from heat and let it cool for about 15–20 minutes. (This step is key for flavor!)
Mix the Sugars: Once the butter has cooled, whisk in the brown sugar, white sugar, and salt until well combined. (WATCH VIDEO BELOW)
Add the Wet Ingredients: Stir in the eggs and vanilla extract until you get a smooth, glossy mixture.
Incorporate the Dry Ingredients: Gradually mix in the flour and baking soda until a soft cookie dough forms. Fold in the chocolate chunks.
Bake: Spread the dough evenly in your skillet, sprinkle with flaky sea salt, and bake at 375°F (190°C) for 20 minutes, or until golden brown and slightly crisp on the edges but still gooey in the center.
Serve & Enjoy: Let it cool slightly, then dig in with a spoon straight from the skillet. Don’t forget a generous scoop of vanilla ice cream on top! (WATCH VIDEO BELOW)