Tree Meringue Cookies: Light, Crisp, and Festive 🎄✨

Ingredients:
4 large egg whites (room temperature for better volume)
1 cup fine granulated sugar (provides sweetness and structure)
¼ teaspoon cream of tartar (stabilizes the meringue)
½ teaspoon pure vanilla extract (enhances flavor)
Sugar cookies (round or shaped, to serve as the base for the meringue trees)
Instructions: