Can you use nutmeg instead of mace for a crumble toppiong for an apple pie?

Answer 1

Yes you can, I'm not too sure the added flavours would enhance the dish, but it's an addition to try. Try on a small amount and see it it's palatable. If in doubt, leave it out, it's not a dedicated addition. Apple sauce is fine as just apple sauce.

Answer 2

I have always used nutmeg in my apple pies, so yes, you can use it as a substitute

Answer 3

Apple pie spice is basically cinnamon and nutmeg, so if your recipe also calls for cinnamon, it may be fine, otherwise no.