45min · 10 servings Ingredients 1 box vanilla cake mix {15.25 ounces} ½ cup all purpose flour ½ cup brown sugar {packed} ½ teaspoon nutmeg ½ cup sour cream 1 ¼ cups eggnog ¼ cup water {or rum} 3 eggs 1 teaspoon vanilla extract Topping ¼ cup powdered sugar ¼ teaspoon cinnamon