How Many Apples for an Apple Pie?
It’s hard to know exactly how many apples you’ll need for an apple pie, but for one 9-inch pie, you probably won’t need more than 10 apples. If your apples are smaller, you’ll probably need 10; if they’re really big apples, you’ll use fewer of them. If you’re worried about getting the amount right, you could always pile the apples into your pie pan as you cut them and stop when it looks like you have enough. Keep in mind, though, that apple varieties that don’t hold their shape well will tend to shrink when you bake them, so you’ll want to use a bit more than you think you need.
Remember that your pie should be filled to the brim but not any higher than that. The filling may be tasty, but overfilling your pie crust means that you run the risk of making your crust wet from the extra fruit juice. It’s also important to make sure that you cut all of your pieces to the same size and thickness to ensure that they bake evenly.