HELP! I need to cut up a large quanity of sliced apples for a school function and am wondering if anyone has a good idea of how to prevent them from turning brown?
If you've got a large amount you can leave them in the water/lemon or Sprite until you are finished slicing everything and then drain the apples before use.
You can also buy sliced apples now that are already treated so they won't brown. They're too expensive (IMHO) for everyday apple eating, but they may be worth it when you're feeding a crowd. But I've used both of the other ideas (and also product called Fruit Fresh or something like that), and they work just fine.
Also remember to choose a variety that does not turn brown as quickly as others. For example Cortland will stay a nicer white longer than a MacIntosh which turns brown very fast.