Preheat the Oven: Set your oven to 350°F.
Beat the Egg Whites: In a stand mixer fitted with a whisk attachment, or using a hand mixer in a large bowl, whip the egg whites and salt until they become stiff.
Incorporate the Sugar: Slowly add the sugar, about two tablespoons at a time, while continuing to beat. Once all the sugar is mixed in, pour in the vanilla extract and whip until the mixture forms glossy, stiff peaks.
Fold in the Mix-ins: Gently stir in the chopped pecans and chocolate chips, ensuring they are evenly distributed without deflating the meringue.
Shape the Cookies: Drop level tablespoons of the mixture onto a parchment-lined baking sheet, spacing them slightly apart.
The “Forgotten” Step: Place the baking sheet into the preheated oven, then immediately turn the oven off. Leave the cookies inside, undisturbed, for at least 4 hours or overnight, allowing them to dry and set as the oven gradually cools.
Serve & Enjoy: Once fully cooled, carefully remove the cookies from the baking sheet and enjoy their light, crisp texture with a chewy center.