– 2/3 cup Nutella – 1 cup unsalted butter, softened – 3/4 cup white sugar – 1 1/4 cups light brown sugar – 2 large eggs, cold – 2 1/2 teaspoons vanilla extract – 3 cups all-purpose flour – 1 teaspoon baking soda – 1/2 teaspoon baking powder – 1/2 teaspoon kosher salt – 1 1/2 cups chocolate chips or chunks (See Kelly’s Note) – Sea salt, for topping (optional)