You don't need to peel the apples before stewing if you don't want to. I chose to peel mine because not everyone likes to find apple skins in their pudding. But you do need to core out the centre and remove any pips.
Can I Freeze Stewed Apples?
Stewed apples will freeze really well in suitable containers for several months. Thaw out thoroughly before making this Apple Sponge pudding.
You can use this recipe with alternate fruits such as Plums or Rhubarb. Eventually, it'll become a pudding staple that you can rustle up in such a short time.