EggNog Cake Mix Cookies - 1 cup of yellow cake mix; 3 tablespoons unsalted butter, melted; 1 large egg yolk; 1 tablespoon cold eggnog; ¼ teaspoon freshly ground nutmeg. For the frosting: ⅓ cup powdered sugar; 1-2 tablespoons eggnog; freshly grated nutmeg for garnish. Mix. Make 8 balls. Bake 9 min@350 on lined baking sheet.