In a medium-sized saucepan over medium-high heat, melt 1 cup unsalted butter. Allow the butter to boil and then froth. Once the butter stops making popping noises, it is done. When you stir the butter you should see brown flecks and smell a nutty flavor. Remove from the heat.
Pour the melted butter into the bowl of a standing mixer with the paddle attachment, add 1 cup brown sugar and 1 cup granulated sugar. Mix until combined.
Add 2 teaspoons vanilla extract and 2 eggs, stir until combined.
Pour the dry ingredients in. 2 1/2 cups all-purpose flour, 1 teaspoon salt, 1 teaspoon cornstarch, and 1 teaspoon baking soda. Stir at low speed until it comes together and looks like dough. Stop mixing as soon as it comes together, you do not want to over-mix.
Fold in the chocolate chips. I like dark chocolate chips for this recipe, but you can use your preferred type.
Remove the dough and wrap in plastic wrap. Place in the fridge to chill for 1-3 hours.
Preheat the oven to 350 degrees.
Remove the cookie dough from the fridge. Scoop the regular sized cookie dough out onto parchment paper-lined, light-metal colored cookie sheets.
Place in the oven and bake for 9 minutes. Remove and allow the cookies to sit on the pan for 5-10 minutes before removing.
Remove and allow to fully cool or enjoy while hot.