In a brief comparison, McDonald's Vanilla Iced Coffee and McDonald's Happy Meal Hotcakes with Apple Slices offer distinct sweet treats within the McDonald's menu. The Vanilla Iced Coffee, a refreshing beverage, is made with 100% Arabica coffee, sweetened with sugar, and infused with a creamy vanilla flavor. On the other hand, the Happy Meal Hotcakes with Apple Slices is a classic breakfast item, consisting of golden, fluffy hotcakes served with a side of crisp apple slices. Both options cater to different preferences for hot and cold, sweet and savory, and can be a delightful choice for varying meal times. Keep in mind that nutritional content and availability may vary depending on location and specific orders.