Brown the Butter: In a saucepan over medium heat, melt the butter. Continue cooking, stirring frequently, until the butter foams and turns a golden brown color with a nutty aroma. Remove from heat and let it cool slightly.
Mix Wet Ingredients: In a large bowl, combine the browned butter, brown sugar, and granulated sugar. Mix until well combined. Add the eggs and vanilla extract; mix until smooth.
Combine Dry Ingredients: In a separate bowl, whisk together the flour, baking soda, and salt. Gradually add the dry ingredients to the wet mixture, stirring until just combined.
Add Chocolate: Fold in the chocolate chips or chunks until evenly distributed throughout the dough.
Preheat Oven: Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper.
Shape Cookies: Scoop tablespoon-sized portions of dough onto the prepared baking sheet, spacing them about 2 inches apart.
Bake: Bake for 12-14 minutes, or until the edges are golden brown and the centers are set.
Cool: Allow the cookies to cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely.