Chop the onions, preferably with a suitable demon before you get there.
Dice the meat if it needs it.
Put meat in pan with a splash of oil, start browning.
Peel, core, and roughly chop the apples.
Once the meat is brown, add the onions, and cook until softened (or until it
starts to stick).
Add enough apple juice to remove danger of sticking, and put the chopped apple
on top of the lot.
Cover, leave to cook for 1/2 hour or so.
By now the apple should have softened down to a mush. Stir it in, add more juice
if it needs it. Add
finely chopped sage. Season if needed.
Carry on simmering for at least another 20 min, and as long after that as you
like.